Minor tweak on CHANGES.md

Author: dinosaure

CHANGES.md

@@ -1,7 +1,7 @@
 ### v0.5.0 2021-08-30 Paris (France)
 
 - Use `Cstruct.length` instead of `Cstruct.len` (@dinosaure, #45)
-- Let the user to emit the end of the stream (spotted by @jsthomas, @dinosaure, review @mikonieminen)
+- Let the user to emit the end of the stream (spotted by @jsthomas, @dinosaure, review @mikonieminen, #47)
 
 ### v0.4.2 2021-07-26 Paris (France)