convert spoiler language and towards deobfuscation language

2006/monge/README.md

@@ -248,7 +248,7 @@ changing the definitions of `W`, `H` and `I` at the beginning of the code.
   parameter.
 
 
-### Spoiler
+### Deobfuscation
 
 Sure, I don't want to deprive you of the pleasure of digging
 into the infernal mess created by my corrupted mind (writing

2006/monge/index.html

@@ -553,7 +553,7 @@ numbers.</li>
 <li>There should be some way to switch from Mandelbrot to Julia with chosen
 parameter.</li>
 </ul>
-<h3 id="spoiler">Spoiler</h3>
+<h3 id="deobfuscation">Deobfuscation</h3>
 <p>Sure, I don’t want to deprive you of the pleasure of digging
 into the infernal mess created by my corrupted mind (writing
 this remark I noticed that I was ending sentences with ‘;’ instead

2006/toledo2/README.md

@@ -222,7 +222,7 @@ In Unix the min 0 on `stty` is required but circa 2001
 it was not required.
 
 
-### How it works (SPOILER)
+### How it works (deobfuscation)
 
 The `l` array contains the 64K memory; it is initialized with a boot image
 loaded from the `C` file. The [program

2006/toledo2/index.html

@@ -534,7 +534,7 @@ is not what is needed.</p>
 <p>On PC/DOS you need to add <code>ANSI.SYS</code> to <code>CONFIG.SYS</code>.</p>
 <p>In Unix the min 0 on <code>stty</code> is required but circa 2001
 it was not required.</p>
-<h3 id="how-it-works-spoiler">How it works (SPOILER)</h3>
+<h3 id="how-it-works-deobfuscation">How it works (deobfuscation)</h3>
 <p>The <code>l</code> array contains the 64K memory; it is initialized with a boot image
 loaded from the <code>C</code> file. The <a href="https://en.wikipedia.org/wiki/Program_counter">program
 counter</a> is the <code>c</code> pointer and