Every wiki comes with a sidebar that automatically lists every wiki page. You can also create your own custom sidebar for additional navigation.

  1. On GitHub, navigate to the main page of the repository.

  2. Under your repository name, click Wiki. Wiki menu link

  3. Click Add a custom sidebar. Wiki add sidebar section

  4. A custom sidebar can contain any markup that GitHub supports. The default choice is Markdown, but you can use the "Edit mode" drop-down menu to switch to a different markup language. Wiki markup selection
  5. Use the text editor to add your page's content. You can also use the wiki toolbar at the top for entering text via a graphical WYSIWYG editor. Wiki WYSIWYG
  6. Enter a commit message describing the sidebar you’re adding. Wiki commit message
  7. To commit your changes to the wiki, click Save Page.