chg p6 to raku; chg .perl to .raku

Author: tbrowder

doc/Language/unicode_entry.pod6

@@ -141,7 +141,7 @@ following key combination (whitespace has been added for clarity):
     =end code
 
 This also the method one would use to enter unicode characters into the
-C<perl6> REPL, if one has started the REPL inside a Unix shell.
+C<raku> REPL, if one has started the REPL inside a Unix shell.
 
 =head2 Screen
 
@@ -185,9 +185,9 @@ your own with the C<:digraph> command.
 Further information about entering special characters in Vim can be found on
 the Vim Wikia page about L<entering special characters|http://vim.wikia.com/wiki/Entering_special_characters>.
 
-=head3 vim-perl6
+=head3 vim-raku
 
-The L<vim-perl6|https://github.com/vim-perl/vim-perl6> plugin for Vim can be
+The L<vim-raku|https://github.com/Raku/vim-raku> plugin for Vim can be
 configured to optionally replace ASCII based ops with their Unicode based
 equivalents. This will convert the ASCII based ops on the fly while typing
 them.
@@ -264,7 +264,7 @@ Constructs such as these are now possible:
 This is very useful in shell:
 
     =begin code :lang<shell>
-    perl6 -e 'say ‘hello world’'
+    raku -e 'say ‘hello world’'
     =end code
 
 since you can just copy and paste some piece of code and not worry about quotes.
@@ -290,7 +290,7 @@ Thus constructs such as these are now possible:
     say «moo»;                 # OUTPUT: «moo␤»
 
     my $baa = "foo bar";
-    say «$baa $baa ber».perl;  # OUTPUT: «("foo", "bar", "foo", "bar", "ber")␤»
+    say «$baa $baa ber».raku;  # OUTPUT: «("foo", "bar", "foo", "bar", "ber")␤»
 
 =head2 Set/bag operators