docs(media): the pile is matched with its underscore stripped

The server drops the leading underscore from the hidden folder's display name, so
the park-echo rule that compares spelled names lets the review pile survive as a
visible series. The law now says which spelling is compared; the mechanism stays
with the guard's docstring.

serverAppConfigs-docs/Dankserver/Media Relayout.md

@@ -245,7 +245,10 @@ identity* in the exceptions — that list, not a rename, is the review.
 **The review pile lives outside the library.** Files parked inside
 `/mnt/entropy/TVShows` were indexed as one show named `_unsorted`, and that
 show's rows then looked like evidence. So a row whose series is the hidden
-top-level folder the file itself sits in is dropped, and `--park` outside the root
+top-level folder the file itself sits in is dropped — and the folder is matched
+with its leading underscore stripped, because the server *displays* `_unsorted` as
+`unsorted`: compare the spelled names and the pile survives the relayout as a
+visible series folder that real files get renamed into. `--park` outside the root
 makes the next plan re-file the pile instead of skipping it. Inside a hidden
 top-level folder a file's own words may MATCH a registered show, never invent one.