Get rid of traceability/#

[nissimsan]

Continued from #531, the terms we are in control over should not have "slash-hashes".

[OR13]

Lots of problems remain: https://github.com/search?q=repo%3Aw3c-ccg%2Ftraceability-vocab%20traceability%2F%23&type=code

[nissimsan]

Find-replace

[OR13]

find replace in *.yaml and *.html... if it pops back up, tooling needs to be updated.

[nissimsan]

Noting that the respec anchors are still generated with /#. I still think we should fix that in the tooling.

[OR13]

@nissimsan is it possible to fix it in the same PR?

[nissimsan]

Theoretically it is, but it is a rather different topic. I would suggest keeping it separate. But let's keep this issue open to also update how the tooling generates terms which we define.