Minor grammar edit (syntactic -> syntactical). (#1043)

* Minor grammar edit (syntactic -> syntactical).

* Update handling-events.md

Co-authored-by: Sunil Pai <threepointone@oculus.com>

content/docs/handling-events.md

@@ -8,7 +8,7 @@ redirect_from:
   - "docs/events-ko-KR.html"
 ---
 
-Handling events with React elements is very similar to handling events on DOM elements. There are some syntactic differences:
+Handling events with React elements is very similar to handling events on DOM elements. There are some syntax differences:
 
 * React events are named using camelCase, rather than lowercase.
 * With JSX you pass a function as the event handler, rather than a string.