Adds patterns for unclear pronouns and label fragments

[austinderrick]

Two patterns come up often in AI prose and are not covered yet.

Pattern 36 flags a pronoun that points at nothing. A sentence opens with This, That, or It standing for the whole idea before it rather than a noun, so the reader has to work out what the pronoun stands for. The same habit produces all of it and any of it where no antecedent exists. The pattern also catches the case where two nouns compete and the nearer one gives the wrong reading.

Pattern 37 flags a noun phrase punctuated as a sentence. Writers do this most often in a subtitle, a summary line, or the first line of a section. The phrase names a topic but makes no claim.

Pattern 37 also states its own boundary, because two patterns sit close to it. Pattern 31 covers short sentences used for drama. Pattern 13 covers dropped subjects in instructions. Pattern 37 covers a label standing where a sentence belongs.

Both new patterns carry a limit, in the style of #34 and #35. The skill leaves clear pronouns alone, and it does not rewrite headings, table cells, or list items where a label is the right form.

[blader]

Closing. A vague "this" and a noun phrase punctuated as a sentence are general editing advice, not signs of AI writing. The skill's false-positive section makes that distinction on purpose: dry writing without specific tells is just dry writing.