preliminary library reference finished

[nominatim.git] / docs / library / Input-Parameter-Types.md

diff --git a/docs/library/Input-Parameter-Types.md b/docs/library/Input-Parameter-Types.md
index dae560b2929e8a19a91207f685e264e9ae190fe1..5ee11425826bcc6371033ea1a7bec589762ca4bf 100644 (file)
--- a/docs/library/Input-Parameter-Types.md
+++ b/docs/library/Input-Parameter-Types.md
@@ -49,8 +49,14 @@ types for place identification. All types are dataclasses.
 
 ## Layers
 
+Layers allow to restrict the search result to thematic groups. This is
+orthogonal to restriction by address ranks, which groups places by their
+geographic extent.
+
+
 ::: nominatim.api.DataLayer
     options:
         heading_level: 6
+        members_order: source