remove old readme content

Author: jeffjennings

README.md

@@ -1,43 +1,11 @@
 # Astropy Tutorials
 
-This repository contains tutorial Jupyter notebooks for the
-[Astropy](http://astropy.org) project. These are typically longer-form,
-narrative presentations of functionality in the [Astropy core
-package](https://github.com/astropy/astropy) and any [affiliated
-packages](http://www.astropy.org/affiliated/index.html). The tutorials are different
-from the [Astropy core package documentation](http://docs.astropy.org), which presents a
-more structured and exhaustive view of the Astropy core package.
-
-
-## Viewing and running the tutorials
-
-To see the tutorials rendered as static web pages, see the [Learn Astropy
-website](https://learn.astropy.org).
-
-To execute the tutorials interactively, either use Binder to run the tutorials
-remotely or clone this repository to your local machine.
-
-### Run the tutorials in your browser with Binder
-
-[![Binder](http://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/astropy/astropy-tutorials/main?filepath=tutorials)
-
-### Run the tutorials locally
-
-Clone this repository with `git` or download an archive of the repository from
-GitHub. You will need to have [Jupyter notebook](http://jupyter.org/) and IPython
-installed. Then install the `requirements.txt` that are specified in the folder
-containing the specific `.ipynb` tutorial you wish to run. For example, to run the
-`FITS-cubes.ipynb` tutorial, first install:
-
-    python -m pip install -r FITS-cubes/requirements.txt
-
-
 ## Contributing tutorial material
 
 We are always interested in incorporating new tutorials into Learn Astropy and
 the Astropy Tutorials series. We welcome tutorials covering astro-relevant topics; they
 do not need to use the Astropy package in order to be hosted or indexed here.
-If you have astronomy tutorials that you would like to contribute to this repository,
+If you have astronomy tutorials that you would like to contribute,
 or if you have a separate tutorial series that you would like indexed by the
 Learn Astropy website, see the [Contributing
 Guide](https://learn.astropy.org/contributing) on the Learn Astropy website for