2) Push that branch to github:
git push origin
3) Now reset your master branch to match the last common commit between the two:
git checkout master
git reset --hard 30e99b7272ff39b106af # that commit hash just a guess
4) Push the changed branch to github:
git push -f origin master # -f is for "force"
5) Pull changes from my repo:
git pull seancribbs master
6) Push to your repo master branch
git push origin master
These kinds of acrobatics are why I always suggest doing work on
feature/topic branches -- they make it easier to merge your own
repository with mainline.
Cheerr