Adds doc for $¢ closes #1760

doc/Type/Match.pod6

@@ -13,6 +13,20 @@ in the original string, and a payload referred to as I<AST> (abstract syntax
 tree), which can be used to build data structures from complex regexes and
 grammars.
 
+The last match is also stored in the X<C<$¢>> variable:
+
+    my $c;
+    'abc' ~~ /.$${ $c = $¢ }/;
+    say $c; # OUTPUT: «｢c｣␤»
+
+In this case, we are running the code among curly braces when the match occurs,
+in this case the last letter in the string; C<$c> gets the value of the cursor
+C<$¢>, which contains the C<Match>. This C<$¢> offers a way of capturing the Match inside a regular expression; if you are not going to use it inside that you can simply use L<C<$/>|/syntax/$$SOLIDUS>
+
+    my $c; 'camelia' ~~ /<[ l m ]> {$c = $¢}/;
+    say $c; # OUTPUT: «｢m｣␤»
+    say $/; # OUTPUT: «｢m｣␤»
+
 Submatches are also C<Match> objects (or lists of C<Match> objects,
 if the corresponding regex was quantified), so each match object
 can be seen as the root of a tree of match objects.