improve layout of 1984/laman/index.html

Fixed code block.

Run `bin/readme2index.sh -v 1 1984/laman` to perform the above.

1984/laman/README.md

@@ -31,7 +31,7 @@ them from:
 
 ``` <!---c-->
 	;++f)a[		b<<5|c]		=d++,b+		=e;for(		f=0;f<O
-    <<5|c]^		=a[b<<5		|c]^=a[		(k-(b+1		))<<5|c]
+	<<5|c]^		a[b<<5		|c]^=a[		(k-(b+1		))<<5|c]
 ```
 
 to:

1984/laman/index.html

@@ -165,7 +165,7 @@ like:</p>
 <p>Some new compilers (in 1984) dislike lines 6 and 10 of the source, so we changed
 them from:</p>
 <pre><code>        ;++f)a[         b&lt;&lt;5|c]         =d++,b+         =e;for(         f=0;f&lt;O
-    &lt;&lt;5|c]^             =a[b&lt;&lt;5         |c]^=a[         (k-(b+1         ))&lt;&lt;5|c]</code></pre>
+        &lt;&lt;5|c]^         a[b&lt;&lt;5          |c]^=a[         (k-(b+1         ))&lt;&lt;5|c]</code></pre>
 <p>to:</p>
 <pre><code>        ;++f)a[         b&lt;&lt;5|c]         =d++,b+=        e;for(          f=0;f&lt;O
         &lt;&lt;5|c]^=        a[b&lt;&lt;5          |c]^=a[         (k-(b+1         ))&lt;&lt;5|c]</code></pre>