Update docs to v7 (#923)

Author: elyase

docs/index.rst

@@ -72,7 +72,7 @@ Example Usage
     es.indices.refresh(index="test-index")
 
     res = es.search(index="test-index", body={"query": {"match_all": {}}})
-    print("Got %d Hits:" % res['hits']['total'])
+    print("Got %d Hits:" % res['hits']['total']['value'])
     for hit in res['hits']['hits']:
         print("%(timestamp)s %(author)s: %(text)s" % hit["_source"])