I am really interested in the work that the wikimedia
and would like to ask if there would be a possibility to volunteer and help
out in any way.
Just sign up on a project of your choice and start editing articles!
All help is welcome. (You don't even need to sign up, you can do a lot
of things anonymously.) There is an "edit this page" link at the top
of every page, just click it and you can change anything, you don't
need special permission or anything (well, you do for a tiny minority
of pages, but don't worry about those).
You may find http://en.wikipedia.org/wiki/Wikipedia:Tutorial