docs: correct the Play tags to the ones that exist in Play taxonomy

docs/PLAY_RELEASE_CHECKLIST.md

@@ -95,8 +95,10 @@ action except the items marked **[code]**.
       1080×2400 phone capture has to be cropped to 1080×2160;
       `tools/make-store-screenshots.sh` does exactly that (status and navigation bars only).
 - [ ] Category: *Tools* (or *Photography* — pick it **before** the tags, because it shapes the
-      *Suggested tags* list). Tags: **max 5, chosen from Play's own list, not typed freely** — the
-      recommended set and the ones to avoid are in
+      *Suggested tags* list). Tags: **max 5, from Play's own list, not typed freely — and only two
+      are honest for this app: *Photography*, plus optionally *Privacy & security*.** Play's
+      taxonomy contains no duplicate/cleanup tag at all, so do not pad the field with
+      *Photo editor* just to fill it; the reasoning is in
       [STORE_LISTING](STORE_LISTING.md) › Category and tags.
 
 ## 5. Policy and compliance