Clean up main readme
Clean up main readme

Wertros/GradleTutorial,Wertros/GradleTutorial,udacity/ud867,Sushant-M/Joke_Telling_App,udacity/ud867,DevDoug/AndroidNanoDegreeProjectFour,SethsApps/ud867,KarthicK10/AND_Project_4_BuildItBigger,KarthicK10/AND_Project_4_BuildItBigger,Sushant-M/Joke_Telling_App,DevDoug/AndroidNanoDegreeProjectFour,SethsApps/ud867