Rewrote the main header that describes the club

I fixed grammatical mistakes and tried to more accurately describe what
the club is about and what meetings entail. Further work needs to be
done, but perhaps that can wait until we get the whole site overhauled.

How does it look now? (I couldn't figure out how to test it with css, so
I hope it looks okay)
Merge branch 'master' of https://github.com/SCPC/SCPC.github.io
removed copy of text
Merge pull request #2 from RoboNickBot/master

Reworked the main header that describes the club