Non-functional sub-navbar links on the Contribute page

Description:

I noticed that several sub-navbar links on the Contribute page are non-functional.

The Data link works correctly, adding #data to the URL and linking to the corresponding section.

However, the other links add #{expected-section} (e.g., #bugs, #support, etc.) to the URL but don’t lead anywhere because no corresponding elements exist on the page.

I verified that only the DATA section exists on the page so the other links currently serve no purpose.

Proposed Solution:

I found relevant content for each missing section on the OpenPrinting wiki: How to Contribute
(scroll down a bit, some links there are also broken, but the content exists)

Since the DATA section was copied word-for-word from this wiki page, I believe that this is the intended source. I can add the existing content from the wiki to match the existing format.

Would you like me to proceed with this fix?

Start at the Contribute page and compare its sub-navbar links with the corresponding sections in the OpenPrinting wiki's How to Contribute page. Add the missing section content in the existing format so each link resolves to a matching section, then verify the DATA, bugs, support, and other anchors on the page.