Statistics with a chart at the end of a game, 64 achievements kept locally and on the server

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -96,6 +96,10 @@ of your forge to break a fortress in the forest.
   <br><i>Left: the world up there. Too bright. Right: a drawbridge up, a drawbridge down, and lava that thinks it is a floor.</i>
 </p>
 
+**🏆 Champions and trophies.** Every fifth wave a champion of the Order leads the knights - Sir Aldric, Dame
+Seraphine, Brother Halvard or Captain Rothgar, each with a trick of his own and loot for whoever brings him down.
+After every game a chart shows how it went, and 64 achievements wait - some of them secret, all of them petty.
+
 **👑 Other masters want your realm, too.** Mossgrim the Mouldy (green, smells like a wet cellar) and Lady Nightwell
 (blue, writes threatening letters on scented paper) dig their own dungeons in free play and in the campaign.
 And the humans attack *everybody*. Let them bite each other first.