Errata Management Implementation

[egekorkan]

Following up #2008.

Some ways forward:

• Option 1. Do not use the official W3C labels and create the rendered version ourselves (do not include the script)
• Option 2. Create a new repo for each REC version
• Option 3. Fork that script and filter based on TD version etc. This seems the best approach at this point but we will need to agree together.
• Option 4. Use the official labels but do not include the script and create the rendered version ourselves
• Option 5. Contribute back to the script: https://github.com/w3c/display_errata/

For the way forward, we will ask on https://github.com/w3c/display_errata/ if we can change the script to include a spec version. If yes, we will take option 5. If not, we will try option 3. Option 1 is always a fallback.

[egekorkan]

Also see w3c/display_errata#23

[egekorkan]

https://github.com/w3c/wot/blob/main/policies/errata-management.md should be used for the concrete implementation