message: Run riot-web develop, not master
diff: set -ev
  -git clone --depth=1 https://github.com/vector-im/riot-web.git riot-web
  +git clone --depth=1 --branch develop https://github.com/vector-im/riot-web.git riot-web
  cd riot-web
  mkdir node_modules
  ln -s ../.. node_modules/matrix-react-sdk
  