Update the README to point to the cheat sheet.

Makefile.PL

@@ -150,5 +150,7 @@ clean_cheat_sheet:
 
 clean:: clean_cheat_sheet
 
+create_distdir: ptp_cheat_sheet.pdf
+
 MAKE_FRAGMENT
 }

README.pod

@@ -25,10 +25,16 @@ See examples of B<PTP> in action in the L<documentation|ptp/EXAMPLES>.
 
 =head2 DOCUMENTATION
 
-You can find the documentation for the program itself on L<meta::cpan|ptp>.
+You can find the documentation for the program itself on L<meta::cpan|ptp> or on
+the L<project wiki|https://github.com/mkende/ptp/wiki/Full-Documentation>.
 After the program is installed, you can also get its documentation by running
 any of the following commands: B<man ptp>, B<ptp --help> or B<perldoc ptp>.
 
+There is also a quick reference card, available with the B<--cheat> command line
+flag or on L<meta::cpan|App::PTP::Cheat_Sheet>, on the
+L<project wiki|https://github.com/mkende/ptp/wiki/Cheat-Sheet> or in
+L<PDF format|https://metacpan.org/dist/App-PTP/source/ptp_cheat_sheet.pdf>.
+
 The built-in B<--help> rendering will be better if the B<perldoc> program is
 installed. It usually comes in a B<perl-doc> package on most systems.
 

lib/App/PTP/Cheat_Sheet.pod

@@ -52,7 +52,7 @@ Pipeline commands are applied, in order, to all the input files.
 
 =item B<-M> I<module>: load the given module
 
-=item B<--sort>, B<--ns> (B<--numeric-sort>), B<--ls>, (B<--locale-sort>),
+=item B<--sort>, B<--ns> (B<--numeric-sort>), B<--ls> (B<--locale-sort>),
 B<--cs> I<code> (B<--custom-sort>)
 
 =item B<-u> (B<--unique>), B<--gu> (B<--global-unique>)
@@ -118,11 +118,12 @@ default is C<\n>
 =item B<--eol> (B<--preserve-input-separator>), B<--fix-final-separator>
 
 =item B<-0>: set B<--input-separator> to C<NUL> and B<--output-separator> to the
-empty string.
+empty string
 
 =item B<--00>: set B<--output-separator> to C<NUL>, useful with C<xargs -0>
 
-=item B<-h> (B<--help>), B<--version>: remember to have B<perldoc> installed
+=item B<-h> (B<--help>), B<--cheat>, B<--helpshort>, B<--version>: remember to
+have B<perldoc> installed
 
 =item B<-d> (B<--debug>), B<--abort>