Fix CI Tests (amilajack#227)

* Fix CI tests

* Fixed filename casing issues

Create CODE_OF_CONDUCT.md

Create CODE_OF_CONDUCT.md

Update CONTRIBUTING.md

Added 'editor configuration' to readme

Fixed 'maintained' badge link

Merge pull request amilajack#57 from ZakariaRidouh/master

use local posterholder

Merge pull request amilajack#47 from thangngoc89/patch-1

Fixed git url in readme.md

Fixed appveyor filename

Fixed appveyor filename