Just use a program called alacarte:
sudo apt-get install alacarte
Click on the New Item button, write the command & name of the app, choose a logo if you want and you will see it appearing shortly in the Unity launcher by typing the name. Otherwise, you will have to create a *.desktop file and add it to .local/share/applications which I couldn’t make it work after spending a couple of hours.
Make Things Happen 