Leftover parenthesis on search-percolate official docs reference

Author: Mpdreamz

docs/asciidoc/nest/core/percolate.asciidoc

@@ -7,7 +7,7 @@ The percolator allows to register queries against an index, then send percolate
 which include a doc, and get back the queries that match on that doc out of the set of registered queries. 
 
 Percolate is a complex but awesome Elasticsearch feature, so be sure to read 
-the {ref_current}/search-percolate.html)[official documentation].
+the {ref_current}/search-percolate.html[official documentation].
 
 === Register a Percolator