fix links in 1992/buzzard.2/buzzard.2.README.html

The `1992/buzzard.2/buzzard.2.README.md` has been improved
so that links to files that is referenced are
directed to the proper web pages (web site or GitHub).

Links in `1992/buzzard.2/buzzard.2.README.md` markdown
files have been changed to the generated HTML files.

Changed `bin/gen-other-html.sh` VERSION from to "1.0.4 2024-04-13"
to "1.1 2024-04-20".

By default, we substitute _%%REPO_URL%%_ and _%%SITE_URL%%_
in inc files.

Changed `bin/subst.default.sh` VERSION from to "1.2.3 2024-04-13"
to "1.3 2024-04-20".

All `-s TOKEN=value` substitutions are applied to all markdown files
that are processed by `bin/md2html.sh`.

Substitutions of and **%%TOKEN%%** are performed on included HTML
content, content generated by the ‘before tool’ (-b tool), content
generated by the ‘after tool’ (-a tool), as well as the markdown
content given to the pandoc wrapper tool (-p tool).

It is an error, unless -S is given, for any phase, except HTML phases
20-29, to not substitute all **%%TOKEN%%**'s. For HTML phases 20-29, any
**%%TOKEN%%** that is not substituted are passed thru without substitution.

Update `bin/index.html` to clarify

Changed `bin/md2html.sh` VERSION from to "1.4 2024-04-18"
to "1.5 2024-04-20".

Fix the _BEFORE: 1st line of markdown file_ and _AFTER: last line
of markdown file_ HTML comments so that the true markdown file
source (not some temporary file) is identified.  This prevents
`authors.html`, `location.html` and `years.html` from always changing
due to different temporary files being used on each run.

Run `make www` to perform the above.

bin/gen-other-html.sh

@@ -84,7 +84,7 @@ shopt -s globstar	# enable ** to match all files and zero or more directories an
 
 # set variables referenced in the usage message
 #
-export VERSION="1.0.4 2024-04-13"
+export VERSION="1.1 2024-04-20"
 NAME=$(basename "$0")
 export NAME
 export V_FLAG=0
@@ -221,12 +221,8 @@ while getopts :hv:Vd:D:nNt:T:p:u:w: flag; do
 	TOOL_OPTION+=("$PANDOC_WRAPPER")
 	;;
     u) REPO_URL="$OPTARG"
-	TOOL_OPTION+=("-u")
-	TOOL_OPTION+=("$REPO_URL")
 	;;
     w) SITE_URL="$OPTARG"
-	TOOL_OPTION+=("-w")
-	TOOL_OPTION+=("$SITE_URL")
 	;;
     \?) echo "$0: ERROR: invalid option: -$OPTARG" 1>&2
 	echo 1>&2
@@ -342,6 +338,10 @@ fi
 #
 TOOL_OPTION+=("-t")
 TOOL_OPTION+=("$TAGLINE")
+TOOL_OPTION+=("-u")
+TOOL_OPTION+=("$REPO_URL")
+TOOL_OPTION+=("-w")
+TOOL_OPTION+=("$SITE_URL")
 
 # print running info if verbose
 #
@@ -631,17 +631,20 @@ for YYYY in $(< "$TOP_FILE"); do
 		if [[ $V_FLAG -ge 3 ]]; then
 		    echo "$0: debug[3]: about to run: $MD2HTML_SH ${TOOL_OPTION[*]}" \
 			 "-s $DESCRIPTION -s $KEYWORDS -s $HEADER_2" \
+			 "-s REPO_URL=$REPO_URL -s SITE_URL=$SITE_URL" \
 			 "-s $UP_LINK -s $UP_TEXT -D $D_OPTION -m $MD_FILE -v $V_FLAG --" \
 			 "$MD_FILE $HTML_FLLE" 1>&2
 		fi
 		"$MD2HTML_SH" "${TOOL_OPTION[@]}" \
 		    -s "$DESCRIPTION" -s "$KEYWORDS" -s "$HEADER_2" \
+		    -s "REPO_URL=$REPO_URL" -s "SITE_URL=$SITE_URL" \
 		    -s "$UP_LINK" -s "$UP_TEXT" -D "$D_OPTION" -m "$MD_FILE" -v "$V_FLAG" -- \
 		    "$MD_FILE" "$HTML_FLLE"
 		status="$?"
 		if [[ $status -ne 0 ]]; then
 		    echo "$0: ERROR: tool: $MD2HTML_SH ${TOOL_OPTION[*]}" \
 			 "-s $DESCRIPTION -s $KEYWORDS -s $HEADER_2" \
+			 "-s REPO_URL=$REPO_URL -s SITE_URL=$SITE_URL" \
 			 "-s $UP_LINK -s $UP_TEXT -D $D_OPTION -m $MD_FILE -v $V_FLAG --" \
 			 "$MD_FILE $HTML_FLLE failed, error: $status" 1>&2
 		    echo 1 > "$TMP_EXIT_CODE" # exit 1