RELEASE-NOTES: changed encoding to UTF-8 like previous releases

RELEASE-NOTES

@@ -66,13 +66,13 @@ This release includes the following known bugs:
 This release would not have looked like this without help, code, reports and
 advice from friends like these:
 
-  Abram Pousada, Barry Abrahamson, Björn Stenberg, Cédric Deltheil, Chen Prog,
+  Abram Pousada, Barry Abrahamson, Björn Stenberg, Cédric Deltheil, Chen Prog,
   Christian Weisgerber, Colin Hogben, Dan Fandrich, Daniel Stenberg,
   Fabian Frank, Guenter Knauf, He Qin, Iida Yosiaki, Jeff Hodges,
   Justin Maggard, Leif W, Luke Dashjr, Maks Naumov, Marc Hoersken,
-  Michael Osipov, Michal Górny and Anthony G. Basile, Mohammad AlSaleh,
+  Michael Osipov, Michal Górny and Anthony G. Basile, Mohammad AlSaleh,
   Nick Zitzmann, Paras S, Petr Novak, Priyanka Shah, Steve Holme,
-  Tobias Markus, Viktor Szakáts,
+  Tobias Markus, Viktor Szakáts,
 
         Thanks! (and sorry if I forgot to mention someone)