Fix "fractiom" -> "fraction" typo in docstring
@@ -50,7 +50,7 @@ class Nanny(ServerNode):
The nanny spins up Worker processes, watches then, and kills or restarts
them as necessary. It is necessary if you want to use the
``Client.restart`` method, or to restart the worker automatically if
- it gets to the terminate fractiom of its memory limit.
+ it gets to the terminate fraction of its memory limit.
The parameters for the Nanny are mostly the same as those for the Worker
with exceptions listed below.
