Be consistent.
In a list, either make every item a note, or a full sentence. Either end
-every item with a full stop, or ensure that no item ends with one.
+every item with a full stop, or ensure that no item ends with one. I<regex>
+B<xor> I<regexp> - choose exactly one, and stick to it.
=head2 Sections
This document describes differences between the 5.12.0 release and
the 5.10.0 release.
-Clearly this sets the scope of which changes are to be summarise in the rest
+Clearly this sets the scope of which changes are to be summarised in the rest
of the document.
=item Notice