Fix API schema description

website/electric-api.yaml

@@ -122,11 +122,17 @@ paths:
             Optional list of columns to include in the rows from the `root_table`.
 
             They should always include the primary key columns, and should be formed
-            as a comma separated list of column names exactly as they are on the database schema.
+            as a comma separated list of column names exactly as they are in the database schema.
+
+            If the identifier was defined as case sensitive and/or with special characters, then\
+            you must quote it in the `columns` parameter as well.
           examples:
             select_columns:
               value: "id,title,status"
-              summary: Only include the id, title, and status columns'.
+              summary: Only include the id, title, and status columns.
+            select_columns_special:
+              value: 'id,"Status-Check"'
+              summary: Only include id and Status-Check columns, quoting the identifiers where necessary.
         # Headers
         - name: If-None-Match
           in: header