Added comments about where markdown content came from

The HTML files now include a comment indicating from where the main
part of the markdown content.

Changed `bin/gen-other-html.sh` VERSION from "1.0 2024-02-27"
to "1.0.1 2024-03-08".

Changed `bin/gen-top-html.sh` VERSION from "1.2 2024-02-29"
to "1.2.1 2024-03-08".

Changed `bin/gen-year-index.sh` VERSION from "1.0.1 2024-02-23"
to "1.0.2 2024-03-08".

Changed `bin/md2html.sh` VERSION from "1.0.1 2024-02-23"
to "1.1 2024-03-08".

Changed `bin/quick-readme2index.sh` VERSION from "1.1.1 2024-02-23"
to "1.1.2 2024-03-08".

1984/anonymous/index.html

@@ -11,6 +11,7 @@
 <!-- END: this line ends content from: inc/top.default.html -->
 <!-- -->
 <!-- The original markdown content was formed by the tool: bin/readme2index.sh -->
+<!-- The main part of the markdown content came from: 1984/anonymous/README.md -->
 <!-- The HTML was converted from markdown by the tool: bin/md2html.sh -->
 <!-- -->
 <!-- START: this line starts content from: inc/head.default.html -->

1984/decot/index.html

@@ -11,6 +11,7 @@
 <!-- END: this line ends content from: inc/top.default.html -->
 <!-- -->
 <!-- The original markdown content was formed by the tool: bin/readme2index.sh -->
+<!-- The main part of the markdown content came from: 1984/decot/README.md -->
 <!-- The HTML was converted from markdown by the tool: bin/md2html.sh -->
 <!-- -->
 <!-- START: this line starts content from: inc/head.default.html -->

1984/index.html

@@ -11,6 +11,7 @@
 <!-- END: this line ends content from: inc/top.default.html -->
 <!-- -->
 <!-- The original markdown content was formed by the tool: unspecified -->
+<!-- The main part of the markdown content came from: 1984/README.md -->
 <!-- The HTML was converted from markdown by the tool: bin/md2html.sh -->
 <!-- -->
 <!-- START: this line starts content from: inc/head.default.html -->
@@ -121,7 +122,7 @@ The name of the contest was simply
 <p>View the <code>index.html</code> web page for the given winning entry
 for information on how to compile it and how to run the winning program.
 Look at the winning source and try to figure how it does what it does!
-This year we only had remarks from two authors but which came years
+This year we only had remarks from two authors but these came years
 later.</p>
 <p>Restrictions against machine dependent code were not in the <a
 href="rules.txt">rules</a> in 1984. The source file size restriction was

1984/laman/index.html

@@ -11,6 +11,7 @@
 <!-- END: this line ends content from: inc/top.default.html -->
 <!-- -->
 <!-- The original markdown content was formed by the tool: bin/readme2index.sh -->
+<!-- The main part of the markdown content came from: 1984/laman/README.md -->
 <!-- The HTML was converted from markdown by the tool: bin/md2html.sh -->
 <!-- -->
 <!-- START: this line starts content from: inc/head.default.html -->

1984/mullender/index.html

@@ -11,6 +11,7 @@
 <!-- END: this line ends content from: inc/top.default.html -->
 <!-- -->
 <!-- The original markdown content was formed by the tool: bin/readme2index.sh -->
+<!-- The main part of the markdown content came from: 1984/mullender/README.md -->
 <!-- The HTML was converted from markdown by the tool: bin/md2html.sh -->
 <!-- -->
 <!-- START: this line starts content from: inc/head.default.html -->