[jenkinsci/slack-plugin] d2a9dc: Update README clarifying many points and fixing

Branch: refs/heads/master Home: https://github.com/jenkinsci/slack-plugin Commit: d2a9dc406317fdd164ce08421662c751a790ac4e https://github.com/jenkinsci/slack-plugin/commit/d2a9dc406317fdd164ce08421662c751a790ac4e Author: Sam Gleske Date: 2017-03-05 (Sun, 05 Mar 2017) Change

[jenkinsci/slack-plugin] d2a9dc: Update README clarifying many points and fixing

Branch: refs/heads/update-README Home: https://github.com/jenkinsci/slack-plugin Commit: d2a9dc406317fdd164ce08421662c751a790ac4e https://github.com/jenkinsci/slack-plugin/commit/d2a9dc406317fdd164ce08421662c751a790ac4e Author: Sam Gleske Date: 2017-03-05 (Sun, 05 Mar 2017)