Add syntax highlighting

[ruffsl]

Related:
chrisbobbe/jekyll-theme-prologue#20
http://richleland.github.io/pygments-css/
github-linguist/linguist#1984

[ruffsl]

@jacobperron , could we get this merged soon? I have some upcoming PRs that could benefit from the improved readability of code snippets using rendered syntax highlighting on the static design site.

[mjcarroll]

Is there currently a page that would take advantage of this?

[ruffsl]

Is there currently a page that would take advantage of this?

Any of the pages showing XML snippets, like all of the roslauch XML or security policy schema docs.
Those long schemas and sub snippets are hard to read with no tag/attribute/comment highlighting.

[mjcarroll]

Definitely an improvement.

[mjcarroll]

Can you include the license for the default.css? I believe it is unlicense based on a quick look.

[ruffsl]

Can you include the license for the default.css?

Sure, but

I believe it is unlicense based on a quick look.

then what does that kind of license header look like?

[mjcarroll]

I saw this in the pygments repo: https://github.com/richleland/pygments-css/blob/master/UNLICENSE.txt

[ruffsl]

Ping @mjcarroll , any further actions necessary?

[mjcarroll]

Thanks for the improvement!