Add missing comma in code section
Missing comma in code section (line 114) is added to the doc file.
@@ -115,7 +115,7 @@ GET /my_index/_rank_eval
],
"requests": [
{
- "id": "amsterdam_query"
+ "id": "amsterdam_query",
"ratings": [ ... ],
"template_id": "match_one_field_query", <3>
"params": { <4>
