Fixed wording :)
Update readme.md

Explaining new version releases and mirrored extension in store
Update readme.md

Link to Filippo's site
Change title message
Clearer.
Fix notification actions:
Start loading on url "loading" for faster response.
Fix some current status loading.
remove redundant code
format some lines
Bump to 2.1.3
Increased repeat notification to 4secs
Changing activation from popup,  call background
for status change