Instead of embedding a GitHub Gist (a pastie like service on steroids) by copying and pasting HTML you can simple embed it with a [gist] shortcode.
For example, to embed the gist: 30948 enter this in a post or page:
[gist id=30948]
It is that simple.
One problem with gists is that a search engine spiders (and users with javascript disabled) will not see your code in a blog entry. This plugin allows you to get around this by including text, such as content of the gist inside the shortcode. The text is wrapped inside these tags:
<noscript><code class="gist"><pre>
You would use it like this:
[gist id=30948]
puts hello_world_test;
i = 0
5.times do
i = i + 1
puts i
end
[/gist]
The content inside a gist shortcode is optional.
View the CHANGELOG to see what has changed between versions.