Redirect to ScanCode Workbench RTD

### Description

The documentation for ScanCode Workbench is out-of-date and needs to be replaced with a very simple summary of what SCWB does and links to the current SCWB RTD pages for everything else.

### Link to Documentation Page

https://scancode-toolkit.readthedocs.io/en/latest/tutorials/how_to_visualize_scan_results.html#how-to-visualize-scan-results

### Select Category

- Inconsistency [x]
- New Section Request []
- General Improvement [x]
- Typo/Mistakes []
- Other []