change Droidcon to Android Makers in code of conduct
change Droidcon to Android Makers in code of conduct

CmoaToto/zeppelin-android-makers-2017,CmoaToto/zeppelin-android-makers-2017,CmoaToto/zeppelin-android-makers-2017,paug/android-makers-2017,CmoaToto/zeppelin-android-makers-2017,paug/android-makers-2017,paug/android-makers-2017,paug/android-makers-2017