Fix Mark Schnitzius's URL in README.md files

As noted in commit 3958bbdb04:

    Updated URL for author as it has changed. It's very little on his
    page and the only page that suggests it is his is the ioccc.html
    page. I couldn't find anything else.

1995/schnitzi/README.md

@@ -1,10 +1,12 @@
 # Best One Liner:
 
-    Mark Schnitzius
-    ISX Corporation
-    3215-C Post Woods Dr.
-    Atlanta, GA 30339 
-    USA
+Mark Schnitzius  
+ISX Corporation  
+3215-C Post Woods Dr.  
+Atlanta, GA 30339   
+USA  
+<http://computronium.org/ioccc.html>
+
 
 ## To build: