Wrong documentation link for the "Custom Heatmap Values" ShaderGraph Assets

How to reproduce:
1. Create a new Unity project
2. In the Project window, right-click -> Create -> Shader Graph -> Custom Heatmap Values -> Any Asset
3. In the Inspector, click the "Open Reference for Shader Graph Heatmap Values" button
4. Observe the results

Expected results: The documentation is opened
Actual results: Missing documentation page is opened

Reproducible with: 6000.1.1f1, 6000.2.0a10
Can't test with: 6000.0.48f1 (No reference button)