fix typo in synonym graph filter docs
@@ -174,7 +174,8 @@ PUT /test_index
Using `synonyms_path` to define WordNet synonyms in a file is supported
as well.
-=== Parsing synonym files
+[float]
+==== Parsing synonym files
Elasticsearch will use the token filters preceding the synonym filter
in a tokenizer chain to parse the entries in a synonym file. So, for example, if a
