Typo in "Existing Standards" section

Small typo: "robots.txt is generally used to let automated tools what access to a site is considered acceptable" missing the word "know" in "used to let automated tools KNOW what access...", or alternatively swap "let" for "tell" as in "used to TELL automated tools..."

Locate the “Existing Standards” section containing the robots.txt sentence in the repository documentation. Correct the missing “know” or use “tell” as described, then review the rendered wording to confirm the sentence is grammatical and the intended meaning is preserved.

Written by the indexing model from the issue text.