GitHub Gist WordPress Plugin allows you to embed <a href="http://gist.github.com" rel="nofollow ugc">GitHub Gist</a> snippets with a [gist] tag, instead of copying and pasting HTML. For example, to embed the <a href="http://gist.github.com/447298.js?file=github_gist_wordpress_plugin_test.txt" rel="nofollow ugc">github_gist_wordpress_plugin_test.txt</a> file from <a href="http://gist.github.com/447298.js" rel="nofollow ugc">gist: 447298</a>, fill in the id and file attributes in the [gist] tag:
[gist id=447298 file=github_gist_wordpress_plugin_test.txt]
or
copy the embedding JavaScript code from GitHub and directly paste it in the body of the [gist] tag:
[gist]<code><script src="http://gist.github.com/447298.js?file=github_gist_wordpress_plugin_test.txt"></script></code>[/gist].
The [gist] tag also expands the content of the embedded Gist and wraps it with “<code><noscript><code><pre></code>” so that search engine spiders, users with javascript disabled and users reading your blog through RSS will still see your code in a blog entry.

GitHub Gist WordPress Plugin

GitHub Gist Wordpress Plugin allows you to embed GitHub Gist snippets with a [gist] tag, instead of copying and pasting HTML.

Gist

Jose Sotelo

Simple solution for users of Gist and Elementor that do not wish to modify the functions.php file of their theme. This plugin will allow you to send form submissions made via Elementor’s Pro form widget to your Gist workspace.

Gist for Elementor

Simple plugin that integrates Elementor Pro form widget with Gist via API.

GitHub Gist WordPress Plugin vs Gist for Elementor