Update docs/source/howto/queryable-encryption.rst

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: aclark4life

docs/source/howto/queryable-encryption.rst

@@ -107,7 +107,7 @@ settings::
 
 .. admonition:: Didn't work?
 
-    If you get the error ``Unknown command: 'createcachecollection'``, ensure
+    If you get the error ``Unknown command: 'showencryptedfieldsmap'``, ensure
     ``"django_mongodb_backend"`` is in your :setting:`INSTALLED_APPS` setting.
 
 Crypt shared library