[Docs] Fix heading in composite-aggregation.asciidoc (#33627)

The heading for the "Missing buckets" should be on the same level as the the "Order" section.
2018-09-12 16:56:03 +02:00 · 2018-09-12 16:56:03 +02:00 · fe478c23b7
parent 36ba3cda7e
commit fe478c23b7
1 changed files with 1 additions and 1 deletions
--- a/docs/reference/aggregations/bucket/composite-aggregation.asciidoc
+++ b/docs/reference/aggregations/bucket/composite-aggregation.asciidoc
@ -348,7 +348,7 @@ GET /_search
 \... will sort the composite bucket in descending order when comparing values from the `date_histogram` source
 and in ascending order when comparing values from the `terms` source.

-====== Missing bucket
+==== Missing bucket

 By default documents without a value for a given source are ignored.
 It is possible to include them in the response by setting `missing_bucket` to