Diff syntax highlighting in Github Markdown
<p>I'm writing documents that should explain code in C# using Markdown.</p>

<p>I use the <code>```csharp</code> to get csharp highlighting.</p>

<p>I sometimes want to highlight something specific in the code using bold or anything.</p>

<p>I know about <code>&lt;pre&gt;</code> etc... but it takes away my csharp highlighting.</p>

<p>Best case scenario - some way to highlight code in the <code>```csharp</code> section.</p>

<p>Next best thing - I can write the code as diff - using + and - to highlight stuff, but how do I tell Github to highlight diff syntax with the red and green backcolor?</p>

<p>Is there a way to use both diff and csharp syntax highlighting?</p>