Small changes to the NOTE section of the 5-to6-var.

I don't believe we should use singular person when writing documentation
(e.g., "I will explain").
Minor rephrasing of the last sentence.

doc/Language/5to6-perlvar.pod6

@@ -11,11 +11,11 @@ equivalents with notes on variations between them where necessary.
 
 =head1 NOTE
 
-I will I<not> be explaining the full use of the Perl 6 variables. This
-document is an attempt to guide you from the Special Variables in Perl 5
-to their equivalents in Perl 6. For full documentation on the Perl 6
-special variables, please see the Perl 6 documentation for those
-variables.
+This document is an attempt to guide the reader from the
+I<Special Variables> in Perl 5 to their equivalents in Perl 6.
+For full documentation on the Perl 6 I<Special Variables>,
+please see the Perl 6 documentation for each of them.
+
 
 =head1 SPECIAL VARIABLES