Wiki updates that might interest people.

[Alfred Perlstein]

Hey folks,

I've updated the wiki with better instructions on how to use git-svn and 
commit to FreeBSD.

Right now we are sort of blocked adding new files until 
https://reviews.freebsd.org/D1154, but until then you can rebuild git 
with those changes and .... IT WORKSS!!!

Updated bootstrap instructions here:
https://wiki.freebsd.org/GitWorkflow#Using_git-svn_.28FreeBSD_committers_only.29

Updated how to merge pull requests here:
https://wiki.freebsd.org/GitWorkflow#Merging_pull_requests_from_github_using_git-svn_.28FreeBSD_committers_only.29

Anyhow, the instructions have been updated to show you how to take pull 
requests from github and commit them directly to the tree.

Drop me a line if you have any questions.

Huge thanks to all that came before and made the page to start with!

-Alfred