add link to English::Control, another implementation of this idea

Author: haarg

rfcs/rfc0014.md

@@ -87,6 +87,9 @@ https://github.com/haarg/English-Globals/blob/master/lib/English/Globals.pm
 A more complete implementation written in XS:
 https://metacpan.org/pod/English::Name
 
+Another implementation of the same idea from 2017, in pure perl:
+https://metacpan.org/pod/English::Control
+
 ## Future Scope
 
 Most punctuation characters are already used for special variables, so a typo