Merge two readme files[1][2] and update the resulting file, if needed.
Also check other repositories if readme files have useful information and move it to mediawiki-selenium readme file.
Readme files in the rest of the repositories should have only repository specific information and point to mediawiki-selenium readme file for general information.
1: https://github.com/wikimedia/qa-browsertests/blob/master/README.md
2: https://github.com/wikimedia/mediawiki-selenium/blob/master/README.md
Version: unspecified
Severity: normal
Whiteboard: gci2013 https://www.mediawiki.org/wiki/Google_Code-In#Candidate_tasks
URL: https://www.google-melange.com/gci/task/view/google/gci2013/5848183833886720