Update ReadMe.md

Added Google play download badge.
WIP: Downloads some toast.
WIP
Set URL
Allow newline in toast
Tidy code.
Tidy code.
SuppressLint
Merge remote-tracking branch 'origin/master'
Increment version since last beta release.
Tidy ReadMe.md
Name the version parameter in the news-toast url.
v3.0.0
apply-upgrades.bat now applies each upgrade, starts the app, and records a screenshot of the app.
Merge branch 'master' into integrated-reader