update more refs to Perl

Author: coke

doc/Language/pod.pod6

@@ -2,7 +2,7 @@
 
 =TITLE Raku pod
 
-=SUBTITLE An easy-to-use markup language for documenting Perl modules and programs
+=SUBTITLE An easy-to-use markup language for documenting Raku modules and programs
 
 Raku pod is an easy-to-use markup language. Pod can be used for
 writing language documentation, for documenting programs and modules, as
@@ -46,7 +46,7 @@ Top Level Heading
 After the typename, the rest of the C<=begin> marker line is treated as
 configuration information for the block. This information is used in
 different ways by different types of blocks, but is always specified using
-Perl6-ish option pairs. That is, any of:
+option pairs. That is, any of:
 
 =begin table
  Value is...       Specify with...           Or with...           Or with...