Beter explain about Unicode NFKD and NFKC forms

Author: samcv

doc/Type/NFKC.pod6

@@ -6,8 +6,9 @@
 
     class NFKC is Uni {}
 
-A Codepoint string in the "KC" L<Unicode Normalization Form|http://www.unicode.org/reports/tr15/>
-
+A Codepoint string in Unicode Normalization Form KC. It is created by Compatibility Decomposition,
+followed by Canonical Composition. For more information on what this means, see
+L<Unicode TR15|http://www.unicode.org/reports/tr15/>.
 =end pod
 
 # vim: expandtab shiftwidth=4 ft=perl6

doc/Type/NFKD.pod6

@@ -6,7 +6,8 @@
 
     class NFKD is Uni {}
 
-A Codepoint string in the "KD" L<Unicode Normalization Form|http://www.unicode.org/reports/tr15/>
+A Codepoint string in Unicode Normalization Form KD. It is created by Compatibility Decomposition.
+For more information on what this means, see L<Unicode TR15|http://www.unicode.org/reports/tr15/>.
 
 =end pod