Fixes sphinx warning in "changelog" misc/NEWS (#829)

Misc/NEWS

@@ -338,7 +338,7 @@ Library
 
 - bpo-29728: Add new :data:`socket.TCP_NOTSENT_LOWAT` (Linux 3.12) constant.
   Patch by Nathaniel J. Smith.
-  
+
 - bpo-29623: Allow use of path-like object as a single argument in
   ConfigParser.read().  Patch by David Ellis.
 
@@ -791,7 +791,7 @@ Library
 - Issue #24142: Reading a corrupt config file left configparser in an
   invalid state.  Original patch by Florian Höch.
 
-- Issue #29581: ABCMeta.__new__ now accepts **kwargs, allowing abstract base
+- Issue #29581: ABCMeta.__new__ now accepts ``**kwargs``, allowing abstract base
   classes to use keyword parameters in __init_subclass__. Patch by Nate Soares.
 
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