add notices to those who wish for a greater challenge

We add the following level-3 header to help people identify text
they may wish to skip if they wish for a greater challenge:

```
```

After that notice we add:

```
**If you want a greater challenge, don't read any further**:
just try to understand the program via the source.

If you get stuck, come back and read below for additional hints and information.
```

And sometimes follow with:

```
```

Or sometimes follow with:

```
```

Where the alt code impacts a "greater challenge", we add instead:

```
**If you want a greater challenge, don't read any further**:
just try to understand the program without looking at the Alternate code.

If you get stuck, come back and look at the Alternate code.
```

And where a given command impacts a "greater challenge", we add instead:

```
**If you want a greater challenge, don't read any further**:
just try to understand the program without running the command below.

If you get stuck, come back and run the following command:
```

Perform `make www` to perform the above and test under macOS.

1998/df/README.md

@@ -110,6 +110,17 @@ My first private version would only run when compiled on a Friday.
 I decided it would be better this way...
 These restrictions have been removed for your convenience.
 
+
+### NOTICE to those who wish for a greater challenge
+
+**If you want a greater challenge, don't read any further**:
+just try to understand the program via the source.
+
+If you get stuck, come back and read below for additional hints and information.
+
+
+### How this entry works:
+
 The following lines describe how this program works; if you don't
 want to know it at this time, please skip them. If this entry would
 by some mistake win the contest, please do not rot13 this - I hate
@@ -118,9 +129,6 @@ reverse them. Anyone out there should have enough discipline and
 rot13 shouldn't be required, really. After all, we are not children
 anymore :-)
 
-
-## Obfuscation information:
-
 <hr style="width:10%;text-align:left;margin-left:0">
 
 This paragraph is not part of the author's remarks, but is a helpful

1998/df/index.html

@@ -480,6 +480,11 @@ some restrictions on the file name:</p>
 My first private version would only run when compiled on a Friday.
 I decided it would be better this way…
 These restrictions have been removed for your convenience.</p>
+<h3 id="notice-to-those-who-wish-for-a-greater-challenge">NOTICE to those who wish for a greater challenge</h3>
+<p><strong>If you want a greater challenge, don’t read any further</strong>:
+just try to understand the program via the source.</p>
+<p>If you get stuck, come back and read below for additional hints and information.</p>
+<h3 id="how-this-entry-works">How this entry works:</h3>
 <p>The following lines describe how this program works; if you don’t
 want to know it at this time, please skip them. If this entry would
 by some mistake win the contest, please do not rot13 this - I hate
@@ -487,7 +492,6 @@ rot13 spoilers since it is somewhat complicated on a Mac to
 reverse them. Anyone out there should have enough discipline and
 rot13 shouldn’t be required, really. After all, we are not children
 anymore :-)</p>
-<h2 id="obfuscation-information">Obfuscation information:</h2>
 <hr style="width:10%;text-align:left;margin-left:0">
 <p>This paragraph is not part of the author’s remarks, but is a helpful
 gift from the judges; if you read too fast to stop yourself, this should

1998/dorssel/README.md

@@ -111,14 +111,30 @@ is the same as
     ./dorssel < dorssel.c | ./dorssel
 ```
 
-- The file [dorssel.html](dorssel.html) contains all the information needed to
-understand this program.  For spoiler information, try:
+
+### NOTICE to those who wish for a greater challenge
+
+**If you want a greater challenge, don't read any further**:
+just try to understand the program without running the command below.
+
+If you get stuck, come back and run the following command:
 
 ``` <!---sh-->
     ./dorssel < dorssel.md
 ```
 
 
+### NOTICE to those who wish for a greater challenge
+
+**If you want a greater challenge, don't read any further**:
+just try to understand the program via the source.
+
+If you get stuck, come back and read below for additional hints and information.
+
+- The file [dorssel.html](dorssel.html) contains all the information needed to
+understand this program.  For spoiler information, try:
+
+
 <!--
 
     Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.

1998/dorssel/index.html

@@ -466,11 +466,19 @@ text that can be reversibly Morsified, i.e.</li>
 <pre><code>    ./dorssel &lt; dorssel.c | ./dorssel | ./dorssel | ./dorssel</code></pre>
 <p>is the same as</p>
 <pre><code>    ./dorssel &lt; dorssel.c | ./dorssel</code></pre>
+<h3 id="notice-to-those-who-wish-for-a-greater-challenge">NOTICE to those who wish for a greater challenge</h3>
+<p><strong>If you want a greater challenge, don’t read any further</strong>:
+just try to understand the program without running the command below.</p>
+<p>If you get stuck, come back and run the following command:</p>
+<pre><code>    ./dorssel &lt; dorssel.md</code></pre>
+<h3 id="notice-to-those-who-wish-for-a-greater-challenge-1">NOTICE to those who wish for a greater challenge</h3>
+<p><strong>If you want a greater challenge, don’t read any further</strong>:
+just try to understand the program via the source.</p>
+<p>If you get stuck, come back and read below for additional hints and information.</p>
 <ul>
 <li>The file <a href="dorssel.html">dorssel.html</a> contains all the information needed to
 understand this program. For spoiler information, try:</li>
 </ul>
-<pre><code>    ./dorssel &lt; dorssel.md</code></pre>
 <!--
 
     Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.

1998/schnitzi/README.md

@@ -116,6 +116,14 @@ looping.  To see the resulting program run, redirect the output from
 and then compile it.
 
 
+### NOTICE to those who wish for a greater challenge
+
+**If you want a greater challenge, don't read any further**:
+just try to understand the program via the source.
+
+If you get stuck, come back and read below for additional hints and information.
+
+
 ### Obfuscation hints:
 
 The big key to this program is figuring out what the names of the

1998/schnitzi/index.html

@@ -470,6 +470,10 @@ looping. To see the resulting program run, redirect the output from
 <code>schnitzi</code> into another file, like this</p>
 <pre><code>    ./schnitzi 4 &gt; sort.c</code></pre>
 <p>and then compile it.</p>
+<h3 id="notice-to-those-who-wish-for-a-greater-challenge">NOTICE to those who wish for a greater challenge</h3>
+<p><strong>If you want a greater challenge, don’t read any further</strong>:
+just try to understand the program via the source.</p>
+<p>If you get stuck, come back and read below for additional hints and information.</p>
 <h3 id="obfuscation-hints">Obfuscation hints:</h3>
 <p>The big key to this program is figuring out what the names of the
 functions ought to be; a bit of research may allow you to guess at

1998/tomtorfs/README.md

@@ -99,7 +99,15 @@ Count the number of non-whitespace characters in the source
 file to find out what dark force drove me to write this ;-).
 
 
-### Obfuscation
+### NOTICE to those who wish for a greater challenge
+
+**If you want a greater challenge, don't read any further**:
+just try to understand the program via the source.
+
+If you get stuck, come back and read below for additional hints and information.
+
+
+### How this entry works:
 
 First of all, if you run a C beautifier on the program (thereby of course losing
 the nice code shape I worked so hard on ;-) ) the code will become a bit more

1998/tomtorfs/index.html

@@ -445,7 +445,11 @@ valid exit value to indicate failure (replace them with <code>EOF</code> resp.
 <h3 id="special-notes">Special notes</h3>
 <p>Count the number of non-whitespace characters in the source
 file to find out what dark force drove me to write this ;-).</p>
-<h3 id="obfuscation">Obfuscation</h3>
+<h3 id="notice-to-those-who-wish-for-a-greater-challenge">NOTICE to those who wish for a greater challenge</h3>
+<p><strong>If you want a greater challenge, don’t read any further</strong>:
+just try to understand the program via the source.</p>
+<p>If you get stuck, come back and read below for additional hints and information.</p>
+<h3 id="how-this-entry-works">How this entry works:</h3>
 <p>First of all, if you run a C beautifier on the program (thereby of course losing
 the nice code shape I worked so hard on ;-) ) the code will become a bit more
 readable.</p>