I want to create unity web-app for my new website.So,is there any up to the mark tutorial.I've read Ubuntu's official tutorial on this topic but that is not even complete.I've developed the code but don't know how to package the code
Actually packaging a webapp isn't really different from packaging any other application. Take a look at resources in this answer and especially at existing integrations, e.g. LinkedIn, Feedly and (shameless plug) This Is My Jam.
Basically, you need
You can generate these files using e.g.
Once you have the files in place, you should be able to generate package using e.g.
If you are using version control such as Git or Bazaar, take a look at git-buildpackage or bzr-builddeb respectively (both available in Ubuntu repository). I've found especially the
I'd take a look at this link: http://developer.ubuntu.com/resources/technologies/webapps/ seeing it's the official guide.