fix urls, the folder has now underscore

[martenson]

FOR CONTRIBUTOR:

• I have read the CONTRIBUTING.md document and this tool is appropriate for the tools-iuc repo.
• License permits unrestricted use (educational + commercial)
• This PR adds a new tool or tool collection
• This PR updates an existing tool or tool collection
• This PR does something else (explain below)

[bgruening]

Are you ok when we merge, but not push it to the TS? There are a few linting errors that we will fix soon as well. ping @bernt-matthias

We would push all those changes with the next UCSC version bump, which will also come in soon. We are just rebuilding all UCSC tools in bioconda.

[martenson]

@bgruening yeah, I'm aware, this does not need to be pushed any time soon. Thanks!

[martenson]

I'll include this in the UCSC sweep PR I am working on.