Update readme.md

Author: syeedameen

src/io/readme.md

@@ -1,12 +1,9 @@
 ### INPUT AND OUTPUT DEVICES SUBROUTINES 
 
 
-Description                 |   Code 
-----------------------------|------------------
-seven segment display       |   [sevenseg]
-4x4 Matrix Keypad           |   [keypad]
-
 
 
-[sevenseg]:(https://github.com/syeedameen/mcs-51-subroutines/blob/master/src/io/7seg.asm)
-[keypad]:(https://github.com/syeedameen/mcs-51-subroutines/blob/master/src/io/keypad.asm)
+Description                 |   Code 
+----------------------------|------------------
+seven segment display       |   [sevenseg](https://github.com/syeedameen/mcs-51-subroutines/blob/master/src/io/7seg.asm)
+4x4 Matrix Keypad           |   [keypad](https://github.com/syeedameen/mcs-51-subroutines/blob/master/src/io/keypad.asm)