[DOCS] fix typo in scripting docs

docs/reference/modules/scripting.asciidoc

@@ -53,7 +53,7 @@ GET /_search
 }
 -----------------------------------
 
-Save the contents of the script as a file called `config/script/my_script.groovy`
+Save the contents of the script as a file called `config/scripts/my_script.groovy`
 on every data node in the cluster:
 
 [source,js]