fix HTML info notes in next/guidelines.html

Adjusted `next/guidelines.md` so that the `next/guidelines.html`
will generate an info notice about avoiding the use of "<br />".

Fixed the formatting of IOCCC judges names.

next/guidelines.md

@@ -1156,5 +1156,5 @@ to be sure they are seeing the most recent tweets.
 
 **-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-**
 
-Leonid A. Broukhis
-chongo (Landon Curt Noll) /\cc/\
+Leonid A. Broukhis<br>
+chongo (Landon Curt Noll) /\\cc/\\