fix formatting on S32::Rules; role Cursor -> class Cursor

S32-setting-library/Rules.pod

@@ -28,9 +28,9 @@ so edit it there in the git repository if you would like to make changes.
 =head1 Overview
 
 This synopsis deals with objects produced by the regexes and grammars
-described in much greater detail in S05.  
+described in much greater detail in L<S05>.  
 
-=head1 Roles
+=head1 Classes
 
 =head2 Regex
 
@@ -45,11 +45,15 @@ Regex objects are created through the syntax described in S05:
 They can be stored in variables for later use, as with the C<qr//> syntax
 in Perl 5.
 
+=over
+
 =item method Bool(Regex:D: )
 
 In boolean context, a regex object will match against C<$_>, and return
 the result as a Bool.
 
+=back
+
 =head2 Match
 
     class Match is Cool does Positional does Associative {
@@ -70,7 +74,7 @@ the result as a Bool.
 
 =head2 Cursor
 
-    role Cursor {
+    class Cursor {
         method Int pos()  {...}
         method     orig() {...}
     }
@@ -83,6 +87,8 @@ Much as a class is a collection of named attributes and methods, a grammar
 is a collection of named regexes and rules.  For more on creating and using
 grammars, see L<S05/Grammars>.
 
+=over
+
 =item parse / subparse
 X<parse> X<subparse>
 
@@ -104,6 +110,8 @@ method does not add anchors, and will match substrings against the rule.
 Parse the file as with C<.parse>, but matches the grammar against the contents
 of C<$filename> instead.
 
+=back
+
 See Abstractions.pod
 
 =head1 Additions