(#137) Updated readme
(#137) Updated readme

- Checked all links are valid
- Updated main image
- Added new Build Status Badge

chocolatey/ChocolateyGUI,gep13/ChocolateyGUI,paladique/ChocolateyGUI,gep13/ChocolateyGUI,dlsteuer/ChocolateyGUI,gep13/ChocolateyGUI,gep13/ChocolateyGUI,alephnaughty/ChocolateyGUI,chocolatey/ChocolateyGUI,RichiCoder1/ChocolateyGUI,gep13/ChocolateyGUI,chocolatey/ChocolateyGUI,chocolatey/ChocolateyGUI,chocolatey/ChocolateyGUI,digital-carver/ChocolateyGUI,wjk/ChocolateyGUI,paladique/ChocolateyGUI,M-Zuber/ChocolateyGUI,sayedihashimi/ChocolateyGUI