Incorrect Link in Variables

Dear octopus-docs team

Many thanks for the hard work over the years on a structured manual and variable reference!

It's not entirely clear to me where this happens (my guess: var2html.py), but some links are malformed. Here's an example:

Incorrect: Unsorted/Running_Octopus_on_Graphical_Processing_Units_(GPUs)

Correct: Unsorted/Running_Octopus_on_Graphical_Processing_Units_(GPUs)

I've run into other broken links, but this is the only example I have right now. It looks like some sort of parsing bug.

Kind Regards Sam