The PR-description check folded the template's asterisks into the pattern,
so a ticked box written without them read as unchecked while rendering
identically on the PR page. `ready for review` was silently withheld and
the bot reported missing visual evidence even with screenshots attached,
with no way to tell from the rendered PR what was wrong.
The two attestations directly above it already anchor on the wording
alone. This one now does the same, accepting `**bold**`, `*italic*`,
`__underscores__` and plain text.
Fixes#6071
