diff --git a/1984/anonymous/Makefile b/1984/anonymous/Makefile
index a4c95f3f6..b0b2cd733 100644
--- a/1984/anonymous/Makefile
+++ b/1984/anonymous/Makefile
@@ -451,6 +451,7 @@ all: ${DATA} ${TARGET}
 	supernova deep_magic magic charon pluto
 
 ${PROG}: ${PROG}.c
+	@echo "NOTE: This entry most likely will not work under macOS."
 	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
 # alternative executable
diff --git a/1984/mullender/Makefile b/1984/mullender/Makefile
index 022d61539..19bc337cb 100644
--- a/1984/mullender/Makefile
+++ b/1984/mullender/Makefile
@@ -449,7 +449,7 @@ all: ${DATA} ${TARGET}
 	supernova deep_magic magic charon pluto
 
 ${PROG}: ${PROG}.c
-	@echo "NOTE: This entry is likely to fail and/or dump core on modern computers"
+	@echo "NOTE: This entry is likely to fail and/or dump core on modern computers."
 	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
 # alternative executable
diff --git a/2020/ferguson2/enigma.1 b/2020/ferguson2/enigma.1
index 775dbaa6e..3e7f05ce3 100644
--- a/2020/ferguson2/enigma.1
+++ b/2020/ferguson2/enigma.1
@@ -1,4 +1,4 @@
-.TH enigma 1 "30 April 2020" "enigma" "IOCCC 2020"
+.TH enigma 1 "19 February 2023" "enigma" "IOCCC 2020"
 .SH NAME
 enigma \- A German Enigma simulator for IOCCC 2020
 .SH SYNOPSIS
diff --git a/2020/ferguson2/recode.1 b/2020/ferguson2/recode.1
index a13f51e97..4c2021bf7 100644
--- a/2020/ferguson2/recode.1
+++ b/2020/ferguson2/recode.1
@@ -1,4 +1,4 @@
-.TH recode 1 "30 April 2020" "recode" "IOCCC 2020"
+.TH recode 1 "20 February 2023" "recode" "IOCCC 2020"
 .SH NAME
 recode \- A configuration tool for the IOCCC 2020 Enigma simulator w/various additional features for enhanced usage
 .SH SYNOPSIS
@@ -101,14 +101,14 @@ Written by Cody Boone Ferguson for IOCCC 2020 (the 27th IOCCC).
 .PP
 \fB\<https://ioccc.xexyl.net/2020/enigma\>\fP The 27th IOCCC 'Most enigmatic'.
 .PP
-\fB\<http://users.telenet.be/d.rijmenants/en/enigmaproc.htm\>\fP Enigma Message Procedures for the Heer (Army), Luftwaffe (Air Force) and Kriegsmarine (Navy).
+\fB\<https://web.archive.org/web/20200710094321/http://users.telenet.be/d.rijmenants/en/enigmaproc.htm\>\fP Enigma Message Procedures for the Heer (Army), Luftwaffe (Air Force) and Kriegsmarine (Navy).
 .PP
 \fB\<http://enigmaco.de/enigma/enigma.html\>\fP Online interactive Enigma simulator.
 .PP
-\fB\<http://www.codesandciphers.co.uk/enigma/index.htm\>\fP Tony Sale's (original curator of the Bletchley Park Museum) pages on The Enigma cipher machine.
+\fB\<https://web.archive.org/web/20200621180323/http://www.codesandciphers.co.uk/enigma/index.htm\>\fP Tony Sale's (original curator of the Bletchley Park Museum) pages on The Enigma cipher machine.
 .PP
-\fB\<http://users.telenet.be/d.rijmenants/en/enigmatech.htm\>\fP Technical Details of the Enigma Machine.
+\fB\<https://web.archive.org/web/20200710094303/http://users.telenet.be/d.rijmenants/en/enigmatech.htm\>\fP Technical Details of the Enigma Machine.
 .PP
-\fB\<http://users.telenet.be/d.rijmenants/en/enigma.htm\>\fP The German Enigma Cipher Machine.
+\fB\<https://web.archive.org/web/20200710094243/http://users.telenet.be/d.rijmenants/en/enigma.htm\>\fP The German Enigma Cipher Machine.
 .PP
 \fB\<http://www.ellsbury.com/enigma3.htm\>\fP How the Enigma was Set Up and Operated.
diff --git a/README.md b/README.md
index 699f8a71d..5439a6592 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 ### This is NOT the official IOCCC web site!
 
-Please visit www.ioccc.org for the official IOCCC web site.
+Please visit [www.ioccc.org](https://www.ioccc.org) for the official **IOCCC** web site.
 
 Please do NOT bookmark or link to this [experimental web site](https://ioccc-src.github.io/temp-test-ioccc/).
 
@@ -14,19 +14,19 @@ changes (understanding that things may be rapidly changing out from
 under your copy), then consider making pull requests against the
 temp-test-ioccc GitHub repo.
 
-The text from the top down to the "What follows is the actual README.md file"
+XXX - The text from the top down to the _What follows is the actual README.md file_
 line will be removed when this web site becomes official - XXX
 
 ## What follows is the actual README.md file
 # About the IOCCC winner GitHub repository
 
-The <A HREF="https://www.ioccc.org/index.html">IOCCC winners GitHub repository</A>
-are the official winners of the International Obfuscated C Code Contest (IOCCC),
-the Internet's oldest on-going contest.
+The [IOCCC winners GitHub repository](https://github.com/ioccc-src/winner) are the
+official winners of the **International Obfuscated C Code Contest (IOCCC)**, the
+Internet's oldest ongoing contest.
 
-For information about the IOCCC, see the <A HREF="https://www.ioccc.org/index.html#goals">goals
-of the contest</A>.
+For information about the IOCCC, see the [goals of the
+contest](https://www.ioccc.org/index.html#goals).
 
-We, the <A HREF="https://www.ioccc.org/judges.html">IOCCC Judges</A>, recommend that you view
-this information via the
-<A HREF="https://www.ioccc.org/index.html">Official IOCCC web site</A>.
+We, the [IOCCC Judges](https://www.ioccc.org/judges.html), recommend that you view
+this information via the [Official IOCCC web
+site](https://www.ioccc.org/index.html).