added build instructions
added build instructions

meticulo3366/infinite_hangman,mleanos/angular-socketio-chat,krimple/angular-socketio-chat,jinxuan/angular-socketio-chat,meticulo3366/angular-socketio-chat,ther12k/angular-socketio-chat,chintan9/angular-socketio-chat,chintan9/angular-socketio-chat,ther12k/angular-socketio-chat,mleanos/angular-socketio-chat,edahood/angular-chat-demo,meticulo3366/infinite_hangman,krimple/angular-socketio-chat,meticulo3366/angular-socketio-chat,jinxuan/angular-socketio-chat,edahood/angular-chat-demo,meticulo3366/infinite_hangman