added the SFD webpage link on SFD Badge
added the SFD introductory article on the homepage
link to sfd webpage
Merge branch 'master' of https://github.com/rohanjaswal2507/glug.nith.ac.in
added the link to sfd wikipage of glugnith on homepage
removed the sfd badge from hrader
edited the sfd article.
Merge pull request #15 from rohanjaswal2507/master

added the SFD webpage link on SFD Badge