Fix typo (GH-12878)

fredrikaverpil · miss-islington · commit 3e986de0d65e · 2019-04-20T16:06:38.000-07:00
"sychronization" -&gt; "synchronization"
diff --git a/Doc/library/asyncio-sync.rst b/Doc/library/asyncio-sync.rst
@@ -17,7 +17,7 @@ those of the :mod:`threading` module with two important caveats:
   argument; use the :func:`asyncio.wait_for` function to perform
   operations with timeouts.
 
-asyncio has the following basic sychronization primitives:
+asyncio has the following basic synchronization primitives:
 
 * :class:`Lock`
 * :class:`Event`
