“Missing Signature” is missing documentation page

Steps to reproduce:
1. Create new Unity project
2. Open Package Manager
3. Press on “+”
4. Select “Install package from tarball”
5. Open attached Google Android .tgz file
6. When “Missing Signature” window pop-up, press “Read More” link
7. Observe the documentation page

Actual results: Documentation page for "Missing Signature" is missing (https://docs.unity3d.com/Manual/upm-signature.html)

Expected results: Documentation page is not missing

Reproducible with versions: 6000.3.0a5

Can’t test with versions: 6000.3.0a4 and lower (doesn’t throw “Missing Signature” window

Tested on (OS): macOS Silicon, Sequoia 15.6 (M1)