Using multiple github with ssh

I used this with my Conemulator

exec ssh-agent bash
eval ssh-agent -s
ssh-add ~/.ssh/xxxxxxxxx*

Configure beyond compare as diff tool

git config --global diff.tool bc
git config --global difftool.bc.path "C:\Program Files\Beyond Compare 4\BComp.exe"
git config --global merge.tool bc
git config --global mergetool.bc.path "C:\Program Files\Beyond Compare 4\BComp.exe"
git config --global alias.mydiff "difftool --dir-diff --tool=bc --no-prompt"

Thanks To aaronhoffman