Fix missing cases of 'web site' to 'website'

... including the index.{md,html} which was in all caps ..

The bin/README.md file (and index.html) was updated slightly with an
added comma: not strictly necessary but for some it might be easier to
read. This was discovered as I was going through the links (not done
checking them yet but so far so good).

bin/README.md

@@ -302,7 +302,7 @@ We recommend that this tool be invoked via the top level `Makefile` by:
 ```
 
 unless the `contest_status` is to be changed, but since only the judges should
-do that that is not a problem.
+do that, that is not a problem.
 
 <div id="gen-top-html">
 ### [gen-top-html.sh](%%REPO_URL%%/bin/gen-top-html.sh)