fix small typo in scripting-ref.rst

docs/scripting-ref.rst

@@ -968,7 +968,7 @@ Set JavaScript to load automatically on each page load.
 **Async:** yes, but only when an URL of a remote resource is passed.
 
 :ref:`splash-autoload` allows to execute JavaScript code at each page load.
-:ref:`splash-autoload` doesn't doesn't execute the passed
+:ref:`splash-autoload` doesn't execute the passed
 JavaScript code itself. To execute some code once, *after* page is loaded
 use :ref:`splash-runjs` or :ref:`splash-jsfunc`.