add experimental rules to build web site

We add to the top level Makefile, some initial rules that
will facilitate the building of HTML content.

The `bin/md2html.sh` tool as been updated to output HTML comments
about the output during HTML phases 20, 21 and 22.

All entry `index.html` files were updated with some additional HTML
comments as a result of the above.  The top level `location.html`,
`years.html` and `authors.html` have had HTML comments added also
a result.

Sorry (tm Canada 🇨🇦) for the mass update of entry `index.html` files.
Hopefully the times when all of them (often) need to be updated
will soon draw to a close.

bin/README.md

@@ -93,6 +93,11 @@ Output author(s) Related HTML for for an entry's index.html page.
 Output the inventory in HTML form for an entry's index.html page.
 
 
+### [output-year-index.sh](output-year-index.sh)
+
+Output markdown of winner links for a given year.
+
+
 ### [pandoc-wrapper.sh](pandoc-wrapper.sh)
 
 Wrapper tool to run pandoc.