Updated static files howto title to include JavaScript.

docs/howto/static-files/index.txt

@@ -1,6 +1,6 @@
-===================================
-Managing static files (CSS, images)
-===================================
+====================================================
+Managing static files (e.g. images, JavaScript, CSS)
+====================================================
 
 Websites generally need to serve additional files such as images, JavaScript,
 or CSS. In Django, we refer to these files as "static files".  Django provides