Git is harwired to use origin as default

So change remote name from "gh" to "origin" as in

<?xml version="1.0" encoding="utf-8"?>
<manifest>
  <remote name="origin"
          fetch="https://github.com/TaylorMonacelli" />
  <project name="7z_practice"
           remote="origin"
           revision="master"
           path="7z_practice" />
</manifest>