I would like to do something like this:
```swift
let <a href="#">someVar</a> = "foo"
```
in Jekyll, and have it show up as a highlighted block of Swift code, where someVar
can be clicked and go to #. Currently the tag is printed and visible instead. I know it's not exactly what the syntax highlighting feature in Jekyll is for, but is it possible in any way to add links to highlighted code blocks, without manually highlighting myself? Is there perhaps some other GitHub Pages-compatible plugin that could do this?