Merge remote-tracking branch 'issam/issam_master'
explained -slug- parameter
added slug info to payloads page
Merge branch 'master' of github.com:myGengo/gengo_api_docs
Merge branch 'master' of https://github.com/slamice/gengo_api_docs
removed duplicate line
Merge pull request #37 from slamice/master

Added slug information