Fix language priority

appendix/waifu2x.nginx.conf

@@ -6,11 +6,11 @@ upstream waifu2x {
 
 map $http_accept_language $lang {
   default en;
-  ~en en;
   ~ja ja;
   ~ru ru;
   ~pt pt;
   ~es es;
+  ~en en;
 }
 
 #limit_req_zone  $binary_remote_addr  zone=one:128m   rate=10r/m;