Specify a default branch

If your project uses a name other than master as the default branch name, make sure to specify this name in the DefaultBranch field of the repo spec as a full Git ref, such as refs/heads/main. Otherwise, if this field is left blank, the Git Connector assumes that your default branch to clone is master. This would mean that you need to:

add the branch name to the Git command every time you push to, clone, or check out the branch.
manually check out the branch after you clone it.

To make your work easier, specify a default branch. For example, to make main the default branch, you need to add the following line to the repo spec:

$ DefaultBranch: refs/heads/main

Setting the DefaultBranch field in the repo spec simplifies pushing and cloning branches.

In addition, you can push:

a single branch by specifying the branch name, which creates a repo with only that branch:
```
$ git push git@ConnectorHost:graphDepotName/repoName branchName
```
all branches by passing in the --all option, which creates a repo with all branches:
```
$ git push git@ConnectorHost:graphDepotName/repoName --all
```
all branches and Git tags by passing in the "*:*" option, which creates a repo with all branches and Git tags.
```
$ git push git@ConnectorHost:graphDepotName/repoName "*:*"
```