We don't really care when this processor runs as long as it happens
after the tags have been extracted.
By not constraining its `runBefore` property we can ensure that other
processors can be run before it.
PR Close#24000
This processor will enable us to write rules about
how the content should appear, such as:
* no headings in markdown content
* only one sentence per line
* no single character parameter names
* etc.
PR Close#22759