Fix markup.
diff --git a/Doc/whatsnew/2.6.rst b/Doc/whatsnew/2.6.rst
index 3378fc8..0e8901b 100644
--- a/Doc/whatsnew/2.6.rst
+++ b/Doc/whatsnew/2.6.rst
@@ -540,7 +540,7 @@
So far we've shown how to specify which field to substitute into the
resulting string. The precise formatting used is also controllable by
-adding a colon followed by a format specifier. For example:
+adding a colon followed by a format specifier. For example::
# Field 0: left justify, pad to 15 characters
# Field 1: right justify, pad to 6 characters
@@ -552,7 +552,7 @@
fmt.format('Banquet', 125) ->
'Banquet $ 125'
-Format specifiers can reference other fields through nesting:
+Format specifiers can reference other fields through nesting::
fmt = '{0:{1}}'
fmt.format('Invoice #1234', width) ->