Add information regarding pygame-ce on Android & WebASM

[cool-dev-guy]

Now pygame can be deployed on most platforms(web,android,desktop).So if the website contain some info about would be great.
eg: pygbag for web,buildozer for android,pyinstaller for desktop(win,mac,linux)

[andrewhong04]

This could be either translated into a blog post or deserving of its own page in the documentation itself.