Add steam-trade #FIXME
Change all single quotes to double quotes
Merge branch 'master' of github.com:gaultier/SteamBot

* 'master' of github.com:gaultier/SteamBot:
  Update README.md
  Update README.md
  Update README.md
Clean up repo & add untracked files
Fix non existent variable after try catch block
Improve help message
Remove unnecessary spaces