wellflat

This is a plugin which gives you a small card to show your GitHub user profile summary. You just have to put shortcode.
Features include: 
+ GitHub account name and avatar 
+ recently active repository 
+ frequently used language list sorted by repository’s stargazers count 
+ public repositories and gists count 
+ followers count 
+ total stargazers count
Notice: 
This plugin caches GitHub user profile data into the database (expires 4 hours).

WP GitHub Card

This plugin provides simple GitHub profile summary card.

Whodunit

Jb Audras

Pedro Mendonça

vsc55

This plugin adds a GitHub Repository Embed Block to the Block Editor.
It is developed on <a href="https://github.com/audrasjb/embed-block-for-github" rel="nofollow ugc">GitHub</a>. Contributions welcome!
Special thanks: 
– <a href="https://github.com/pedro-mendonca" rel="nofollow ugc">@pedro-mendonca</a> for i18n/l10n fixes and portuguese translation. 
– <a href="https://github.com/vsc55" rel="nofollow ugc">@vsc55</a> for Dark Mode Enhancement, full code refresh and spanish translation.

Embed Block for GitHub

Easily embed GitHub repositories in Gutenberg Editor.

WP GitHub Card vs Embed Block for GitHub