tweak README

Author: stmuk

cookbook/02numbers/02-01valid-number.pl.20141205

@@ -1,8 +1,4 @@
-NOTE: 
-	- This is a port of the pugs/examples/cookbook to support Rakudo
-	- They are being added as they are made to work
-
-This is PLEAC, from http://pleac.sourceforge.net/.
+This is PLEAC, from https://github.com/pleac/pleac
 
 PLEAC stands for "Programming Language Examples Alike Cookbook."  Think "Perl6
 Cookbook."  This is our attempt to recreate the Perl5 Cookbook but with proper
@@ -11,3 +7,9 @@ Perl6 idioms.  Naturally, it's an evolving process.
 Note the naming of the directories and the files are done in such a way as to
 mirror the Cookbook (2nd Edition) and to ease sorting.  Please do not use the
 1st edition sections names.
+
+NOTE: 
+  - This was a port from the now defunct pugs/examples/cookbook which then
+    became mu/examples/cookbook supporting Rakudo.
+
+  - PLEAC itself doesn't seem very active