Merge pull request #45 from nuno-vieira/add/git-upstream

git: Add workflow to set upstream branch

Author: alokedesai

specs/git/set_upstream_branch.yaml

@@ -0,0 +1,8 @@
+---
+name: Set upstream branch
+command: git push -u origin HEAD
+tags:
+  - git
+description: Sync the local branch to the remote branch with the same name.
+arguments: []
+shells: []