[apps] update Readme, improve readability (#12554)
[apps] update Readme, improve readability (#12554)

# Why

To improve readability and overall clarity.

# How

Alphabetic order of apps, formatting and links to the packages.
exponentjs/exponent,exponent/exponent,exponentjs/exponent,exponentjs/exponent,exponentjs/exponent,exponentjs/exponent,exponent/exponent,exponent/exponent,exponentjs/exponent,exponent/exponent,exponentjs/exponent,exponent/exponent,exponentjs/exponent,exponent/exponent,exponent/exponent,exponent/exponent,exponentjs/exponent,exponent/exponent