* Remove 'GitHub' from a few short titles * Update content/codespaces/getting-started/index.md Co-authored-by: Laura Coursen <lecoursen@github.com> * Update content/codespaces/setting-up-your-project-for-codespaces/index.md Co-authored-by: Laura Coursen <lecoursen@github.com> * Shorten index shortTitles Co-authored-by: Laura Coursen <lecoursen@github.com>