Update devcycle.rst for Git/GitHub

[brettcannon]

[matrixise]

check this PR: #67

[brettcannon]

I actually needed to clarify some wording on workflow changes so I needed to do my own PR.

[Mariatta]

I actually needed to clarify some wording on workflow changes so I needed to do my own PR.

@brettcannon Do you want to keep the issue open? So we know that there's work pending still?

[brettcannon]

No, this can be closed as my PR should have covered everything.