Removing outdated link & minor tweaks.

Author: carlosperate

README.md

@@ -162,12 +162,11 @@ To add an extension to MakeCode find the "Extensions" option in the Settings men
 
 The link below contains a list of the officially approved extensions, and they can be loaded by by searching for their name in the "Extensions" screen.
 
-- [MakeCode Extensions Gallery](https://makecode.microbit.org/extensions) - Official list of extensions available directly within MakeCode.
+- [MakeCode Extensions Gallery](https://makecode.microbit.org/extensions/extension-gallery) - Official list of extensions available directly within MakeCode.
 
 The following extensions can be added into MakeCode by copying the GitHub URL and pasting it into the search box of the "Extensions" screen.
 
 - [BlueDot](https://github.com/Microsoft/pxt-bluedot) - PXT package to support the BlueDot app - beta.
-- [Kitronik Servo Lite](https://github.com/KitronikLtd/pxt-kitronik-servo-lite) - Blocks that support Kitronik Servo:Lite board for the micro:bit.
 - [Lego Power Functions](https://github.com/philipphenkel/pxt-powerfunctions) - Control LEGO® Power Functions motors using your micro:bit with an infrared LED.
 - [Invent robot](https://github.com/techcampuk/pxt-invent) - This library provides a Microsoft PXT package for Invent robot.
 - [ubirch NB-IoT](https://github.com/ubirch/pxt-ubirch) - Package for sending signed data messages to the ubirch backend.
@@ -203,7 +202,7 @@ The following extensions can be added into MakeCode by copying the GitHub URL an
 - [blehid](https://github.com/bsiever/microbit-pxt-blehid) - Set up the micro:bit V2 as a Bluetooth HID device, like a keyboard, mouse, or gamepad.
 - [MCP23017](https://github.com/CaptainCredible/pxt-MCP23017) - MakeCode driver for the MCP23017 16-Bit I2C I/O Expander.
 
-##### 🗿 Node.js and Browser
+### 🗿 Node.js and Browser
 
 - [node-bbc-microbit](https://github.com/sandeepmistry/node-bbc-microbit) - Control a micro:bit from Node.js using BLE.
 - [node-bbc-microbit-io](https://github.com/sandeepmistry/node-bbc-microbit-io) - Johnny-Five (JavaScript Robotics and IoT programming framework) micro:bit plugin.
@@ -214,7 +213,7 @@ The following extensions can be added into MakeCode by copying the GitHub URL an
 - [microbitFs](https://github.com/microbit-foundation/microbit-fs) - TypeScript library to manipulate files inside a micro:bit MicroPython hex file.
 - [microbitUh](https://github.com/microbit-foundation/microbit-universal-hex/) - TypeScript/JavaScript library to combine micro:bit Hex files into a Universal Hex that works in all versions of the micro:bit.
 
-##### 🗿 JavaScript Tools
+### 🗿 JavaScript Tools
 
 - [PXT Command Line Tool](https://makecode.com/cli) - Use the command line to program the micro:bit with MakeCode JavaScript. You can also run a local version of the MakeCode online editor (part of Microsoft's PXT).
 
@@ -244,15 +243,15 @@ The following extensions can be added into MakeCode by copying the GitHub URL an
 - [DS3234](https://os.mbed.com/users/jsa1969/code/microbit-DS3234/) - Driver in example project using the DS3234 RTC via SPI.
 - [HTU21D](https://github.com/ti-nspire/microbit-in-mbed-library-for-HTU21D-sensor) - Mbed library for the HTU21D digital humidity and temperature sensor.
 - [Distintiva micro:bit library](https://github.com/distintiva/distintiva_microbit_lib) - Arduino library to code the micro:bit using the Arduino IDE.
-- [micro:Maqueen Arduino Library](https://github.com/kd8bxp/micro-Maqueen-Arduino-Library) - Arduino library for the DF Robot micro:Maqueen robot, and a micro:bit controller.
+- [micro:Maqueen Arduino Lib](https://github.com/kd8bxp/micro-Maqueen-Arduino-Library) - Arduino library for the DF Robot micro:bit Maqueen robot and controller.
 - [nRF51 Radio](https://github.com/tipih/NRF51_Radio_library) - Arduino library based on the micro:bit DAL radio implementation.
 - [MMA8653](https://github.com/lfhohmann/MMA8653) - This Arduino library brings support for the NXP MMA8653 I2C accelerometer.
 - [micro:bit Video](https://github.com/blogmywiki/microbit-video) - C++ programs for generating NTSC video from a V1 micro:bit to connect to a TV.
 - [blehid](https://github.com/bsiever/microbit-pxt-blehid) - Set up the micro:bit V2 as a Bluetooth HID device, like a keyboard, mouse, or gamepad.
 - [microbit-dal-ext-kit](https://github.com/softgraph/microbit-dal-ext-kit) - A set of components and utilities for C++ applications using micro:bit DAL (runtime).
-- [MicrobitV2-HHS Arduino Library](https://github.com/Grrtzm/MicrobitV2-HHS) - An Arduino library for micro:bit V2 for radio and PWM (including Servo and Tone libraries).
+- [MicrobitV2-HHS Arduino Lib](https://github.com/Grrtzm/MicrobitV2-HHS) - Arduino library for micro:bit V2 for radio and PWM (including Servo and Tone).
 
-### ©️ RTOS with micro:bit profile
+### ©️ RTOS targeting micro:bit
 
 - [ChibiOS](https://github.com/ChibiOS/ChibiOS-Contrib) - A complete development environment for embedded applications including RTOS, a HAL, peripheral drivers, support files, and tools.
 - [Mynewt](https://github.com/apache/mynewt-core) - Open-source operating system for tiny embedded devices. Its goal is to make it easy to develop applications for microcontroller environments where power and cost are driving factors.
@@ -364,9 +363,6 @@ These languages do not program the micro:bit directly, but can be used to create
 - [Official iOS App](https://apps.apple.com/gb/app/micro-bit/id1092687276) - Pair, program and flash programs to the micro:bit via Bluetooth.
 - [Official Swift Playgrounds](https://microbit.org/guide/swift-playgrounds/) - ([Source Code](https://github.com/microbit-foundation/microbit-swift-playgrounds)) Swift Playgrounds is an app for the iPad that helps teach people to code in the Swift language using interactive 'books'.
 - [micro:bit Blue](https://github.com/microbit-foundation/microbit-blue) - Android app that contains a series of demos for interacting with the micro:bit using Bluetooth.
-- [Bitty Software Apps](https://bittysoftware.blogspot.com/p/applications.html) - Diverse collection of Android and iOS apps, going from demos, to data logging, to audio pranks, you'll certainly find something of interest.
-- [Insight Mr Bit](http://www.insightresources.co.uk/microbit/page63.html) - ([iOS](https://apps.apple.com/gb/app/insight-mr-bit/id1175915875)) Create simple programs in plain English to control the BBC micro:bit to do lots of useful things.
-- [micro:bit Xamarin](https://github.com/sumitgouthaman/microbit-ble-mobile) - Open source Android app that communicates with the micro:bit over BLE and gets sensor data. A good example of using Xamarin (a cross platform mobile framework) with the micro:bit.
 - [nRF Connect](https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp) - A generic tool for Android that allows you to scan, advertise and explore BLE devices. It supports the micro:bit by including information on the micro:bit services, custom macros and more.
 - [Serial Bluetooth Terminal](https://play.google.com/store/apps/details?id=de.kai_morich.serial_bluetooth_terminal) - Android app capable to send and receive micro:bit Bluetooth UART data.
 - [micro:bit Slither](https://github.com/novucs/microbit-slither) - Multiplayer snake game on Android, controlled with micro:bits via Bluetooth.
@@ -384,12 +380,11 @@ These languages do not program the micro:bit directly, but can be used to create
 
 ## ↔️ Interface Chip
 
-The USB Interface Chip is the microcontroller placed close to the battery connector. It provides the capability to flash the micro:bit via the `MICROBIT` USB (Mass Storage Device) drive, flash via WebUSB from the browser, a serial console, and HID debugger.
+The USB Interface Chip is the microcontroller placed close to the battery connector. It provides all the USB functionality, like the `MICROBIT` USB drive (Mass Storage Device), WebUSB, serial, and HID debugger.
 
 - [micro:bit Firmware](https://microbit.org/get-started/user-guide/firmware/) - General information about the firmware with instructions on how to update it to the latest version.
 - [microbit.org Developer Community Info](https://tech.microbit.org/software/daplink-interface/) - This micro:bit Developer Community page contains information about the Interface Chip DAPlink and the USB interface.
-- [DAPLink on micro:bit](https://www.mbed.com/en/platform/hardware/prototyping-production/daplink/daplink-on-kl26z/) - The DAPLink is the default software running on the Interface Chip, this page contains information, update instructions, and the latest firmware.
-- [DAPLink source code](https://github.com/ARMmbed/DAPLink) - Source code for the Mbed DAPLink, contains the build configuration for the micro:bit.
+- [DAPLink source code](https://github.com/ARMmbed/DAPLink) - Source code for DAPLink, the firmware running on the Interface Chip.
 - [J-Link OB Firmware](https://www.segger.com/bbc-micro-bit.html) - Offers the same flashing functionality than the DAPLink and expands it to include J-Link debugging.
 - [pyOCD](https://github.com/mbedmicro/pyOCD) - Python library for programming and debugging ARM Cortex-M microcontrollers, like the one included in the micro:bit, using the CMSIS-DAP provided by the Interface Chip.
 - [DAP.js](https://github.com/ARMmbed/dapjs) - JavaScript (Node.js and WebUSB) interface to DAP-CMSIS over USB/HID, meant to provide a subset of the PyOCD functionality.
@@ -399,8 +394,8 @@ The USB Interface Chip is the microcontroller placed close to the battery connec
 ## 🔩 Hardware
 
 - [micro:bit V1 Hardware Design](https://github.com/bbcmicrobit/hardware) - Schematics and bill of materials for the BBC micro:bit.
-- [micro:bit V2 Hardware Design](https://github.com/microbit-foundation/microbit-v2-hardware) - Schematics and bill of materials for the BBC micro:bit V2.
 - [micro:bit V1 Reference Design](https://github.com/microbit-foundation/microbit-reference-design) - Hardware design files for a board 100% binary compatible with the micro:bit. Created to help make your own micro:bit derived designs.
+- [micro:bit V2 Hardware Design](https://github.com/microbit-foundation/microbit-v2-hardware) - Schematics and bill of materials for the BBC micro:bit V2.
 - [micro:bit Badge](https://github.com/make-zurich/micro-bit-badge) - Open Source PCB for the micro:bit with a battery holder, buzzer, extension edge connector and pins breaks out.
 - [Eagle micro:bit Edge Part](https://github.com/proto-pic/micro-bit-eagle-libraries) - Eagle library from Proto-Pic for the micro:bit edge connectors.
 - [Kicad micro:bit Connector](https://github.com/anthonykirby/kicad_microbit_connector) - KiCad component library and footprint library for a micro:bit edge-connector socket.