Updated README

README.md

@@ -30,14 +30,14 @@ sudo ln -s /usr/bin/nodejs /usr/bin/node
 - Install Yeoman, bower and grunt
 ```bash
 sudo npm install --global yo
-npm install -g generator-reveal
-npm install -g grunt-cli
-npm install -g bower
+sudo npm install -g generator-reveal
+sudo npm install -g grunt-cli
+sudo npm install -g bower
 ```
 
 - Move to the cloned repository and install other dependencies
 ```bash
-npm install && bower install
+sudo npm install
 ```
 
 ## Serve