I would like to create alias pages on GitHub Wiki. Is there something similar to a Wikipedia feature that redirects WP:R and WP:RDR to Wikipedia:Redirect page?
You can use the forward. html layout template to redirect any one of your markdown files to another document. By default, it redirects directly, but you can tweak the time and the messaging you want to show to your needs using Markdown frontmatter.
You can create links in wikis using the standard markup supported by your page, or using MediaWiki syntax. For example: If your pages are rendered with Markdown, the link syntax is [Link Text](full-URL-of-wiki-page) . With MediaWiki syntax, the link syntax is [[nameofwikipage|Link Text]] .
With wikis, you can write content just like everywhere else on GitHub. For more information, see "Getting started with writing and formatting on GitHub." We use our open-source Markup library to convert different formats into HTML, so you can choose to write in Markdown or any other supported format.
GitHub has a default sidebar where it places all the pages of the wiki.
GitHub removed/never added the possibility to configure redirects.
The original Gollum wiki supports redirects: https://github.com/gollum/gollum/wiki#redirects
But, as I tested right now, GitHub disabled the feature. It doesn't even work with renamed pages, sorry.
You can see here: Is it possible to redirect in Gollum wiki (GitHub wiki) pages? how people solved the same issue 9 years ago...
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