Links in last paragraph of W3C Process Document are outdated

### Resource URL

https://www.w3.org/WAI/about/groups/agwg/decision-policy/

### Description

For example, [formally addressing an issue](https://www.w3.org/2021/Process-20211102/#formal-address), which should be https://www.w3.org/policies/process/#formal-address 

### Resource Shortname

wai-groups