Start migrating the subdomains to subfolders

[vibhoothi]

Currently, we are using a bunch of sub-domains for most of the events and for each event we are having a separate repository. We should really stop this and start having subfolders which are a bit hard but makes more sense and better.
So we can use subdomain which would redirect to the subfolder like URL shortener service.

For example:
for the amDeC we were having amdec.amfoss.in while we can use sub-domains for advertising but we would require to migrate the whole idea to subfolders where it would with, amfoss.in/events/amdec which makes it more clean and understandable.