improve the status.html page

Changed `bin/gen-status.sh` VERSION from "1.0 2024-03-09"
to "1.1 2024-03-10".

Changed `bin/status2html.sh` VERSION from "1.0 2024-03-09"
to "1.1 2024-03-10".

Improved for explanatory text added near the top of the
`index.html` page by `bin/status2html.sh`.

While `bin/status2html.sh` in intended as tool that is internally
called only, we allowed for a 0 arg use for those who are simply
curious as to what it does.

Tested various _contest_status_ values with `bin/gen-status.sh`.
This resulted in a forced change of _status_update_ in `status.json`.

Removed extraneous whitespace from `bin/output-index-author.sh`.

Performed `make www` to finalize all of the above, although a
`make gen_status` followed by `make gen_sitemap` would have
been sufficient.

bin/output-index-author.sh

@@ -114,7 +114,7 @@ Exit codes:
      5	       some internal tool is not found or not an executable file
      6	       problems found with or in the topdir or topdir/YYYY directory
      7	       problems found with or in the entry topdir/YYYY/dir directory
-     8	       error in author/author_handle.json file 
+     8	       error in author/author_handle.json file
  >= 10         internal error
 
 $NAME version: $VERSION"