Update README.md
Update README.md
Merge branch 'release-0.2'
Merge branch 'develop'
Hotfix 0.2.2

Fix yourls share oversight settings in the prod index
Merge branch 'hotfix-0.2.2'
Merge branch 'hotfix-0.2.2' into develop
Hotfix 0.2.3

Remove Ajax using to shorten
Using popup function (need the last version of Yourls)
Merge branch 'hotfix-0.2.3' into develop