fixed an rendering issue for encoded urls (#1173)

If a url contains some special characters, like space or "<", it needs to be encoded in order to be recognized as a valid url. Adding a decoding step allows these urls to render correctly.

plugins/autolinker/prism-autolinker.js

@@ -71,6 +71,7 @@ Prism.hooks.add('wrap', function(env) {
 
 		env.attributes.href = href;
 	}
+	env.content = decodeURIComponent(env.content);
 });
 
-})();
+})();