Changed team name.
Create gh-pages branch via GitHub
Revert "Create gh-pages branch via GitHub"

This reverts commit 235a2dd1ab1e0a306e290e5126fbf10bdb20b6da.
Removed resources from github pages.
Removed dot.
Corrected a typing error.
Renamed title.
Added information about '잉여'.
Added Organizers.
Changed attendation link.
Added an organizer.