docs/content/communities/documenting-your-project-with-wikis/editing-wiki-content.md

title, intro, redirect_from, product, versions, topics

title	intro	redirect_from	product	versions	topics
Editing wiki content	You can add images and links to content in your wiki, and use some supported MediaWiki formats.	/articles/adding-links-to-wikis /articles/how-do-i-add-links-to-my-wiki /articles/how-do-i-add-or-upload-images-to-the-wiki /articles/needs-writing-review-how-do-i-add-or-upload-images-to-the-wiki /articles/how-do-i-add-images-to-my-wiki /articles/adding-images-to-wikis /articles/supported-mediawiki-formats /articles/editing-wiki-content /github/building-a-strong-community/editing-wiki-content	{% data reusables.gated-features.wikis %}	fpt ghes ghae ghec * * * *	Community

Adding links

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 [[Link Text|nameofwikipage]].

Adding images

Wikis can display PNG, JPEG, and GIF images.

{% data reusables.repositories.navigate-to-repo %} {% data reusables.repositories.sidebar-wiki %}

1. Using the wiki sidebar, navigate to the page you want to change, and then click Edit.

2. In the wiki toolbar, click {% octicon "image" aria-hidden="true" %}.

   

3. In the "Insert Image" dialog box, type the image URL and the alt text (which is used by search engines and screen readers).

4. Click OK.

Linking to images in a repository

You can link to an image in a repository on {% data variables.product.product_name %} by copying the URL in your browser and using that as the path to the image. For example, embedding an image in your wiki using Markdown might look like this:

[[https://github.com/USERNAME/REPOSITORY/blob/main/img/octocat.png|alt=octocat]]

{% ifversion fpt or ghec or ghes or ghae > 3.6 %}

Adding mathematical expressions and diagrams{% endif %}

{% data reusables.getting-started.math-and-diagrams %}

Supported MediaWiki formats

No matter which markup language your wiki page is written in, certain MediaWiki syntax will always be available to you.

• Links (except AsciiDoc)
• Horizontal rules via ---
• Shorthand symbol entities (such as δ or €)

For security and performance reasons, some syntaxes are unsupported.

• Transclusion
• Definition lists
• Indentation
• Table of contents