Title: #6010: docs: Make use of `text` highlighting
As of 4.9.7 FreeIPA makes use of raw lexer in doc/designs/subordinate-ids.md.
raw alias has been removed in Pygments 2.8.0:
This causes the failure of Azure Docs job.
I think that the original goal of `raw` was the disabling of block
highlighting, which can be done with `text` lexer:
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/6010/head:pr6010
git checkout pr6010