DOCS-181 edit to commands that don't require auth

Author: Bob Grabar

source/release-notes/2.0.txt

@@ -375,8 +375,8 @@ automatically, start the shell with :option:`--norc <mongod --norc>`.
 
 For more information, see :doc:`/reference/mongo`.
 
-Most Commands Require Auth
-~~~~~~~~~~~~~~~~~~~~~~~~~~
+Most Commands Require Authentication
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 In 2.0, *all* database commands require that :setting:`auth` is enabled,
 *except for those listed here*. The following commands *do not* require
@@ -392,7 +392,7 @@ that :setting:`auth` is enabled:
 
 - :dbcommand:`ping`
 
-- ``isdbgrid``
+- :dbcommand:`isdbGrid`
 
 Resources
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