Unsets POD_TO_TEXT_ANSI in the p6doc file

Which was set by default. Changes also documentation to reflect this change.

bin/p6doc

@@ -5,9 +5,6 @@ use JSON::Fast;
 use File::Find;
 use MONKEY-SEE-NO-EVAL; # until we have a better serialisation
 
-# use Terminal::ANSIColor if available
-%*ENV<POD_TO_TEXT_ANSI>=1;
-
 my $PROGRAM-NAME = "p6doc";
 
 # die with printing a backtrace

doc/Programs/02-reading-docs.pod6

@@ -15,12 +15,12 @@ Note that C<p6doc> may not be installed automatically depending upon
 how you installed Rakudo Perl 6.  To install it use C<zef>:
 
 =for code :lang<usage>
- zef install p6doc
+zef install p6doc
 
 =head1 SYNOPSIS
 
 =for code :lang<usage>
- p6doc [switches] [arguments]
+p6doc [switches] [arguments]
 
 =head1 DESCRIPTION
 
@@ -59,6 +59,14 @@ You can bypass the pager and print straight to stdout:
 
 The text output can be captured and converted to other forms if desired.
 
+If you want to use ANSI escape sequences, which will apply boldface
+and other enhancements to the output, you will have to set
+POD_TO_TEXT_ANSI, which is unset by default
+
+=for code :lang<shell>
+export POD_TO_TEXT_ANSI=1
+
+
 =head1 LIMITATIONS
 
 Currently C<p6doc> can only extract embedded Perl 6 pod from installed