FIX: description of paging

src/doc/development/api/xml/caosdb_openapi.yaml

@@ -77,8 +77,9 @@ paths:
           in: query
           required: false
           description: |
-            Start and end index (exclusive) within query results of
-            entities shown on page, separated by an 'L'
+            Start index within query results of the first entity and
+            total number of entities to be shown on one page,
+            separated by an 'L'
           schema:
             type: string
             example: 0L10