convert more spoiler into deobfuscation

2020/index.html

@@ -405,7 +405,7 @@ IOCCC list!</p>
 and <a href="ferguson1/index.html">Snake - 2020/ferguson1</a>.</p>
 <p>An entry, <a href="kurdyukov1/index.html">kurdyukov1</a>, pays homage to the previous entry
 <a href="../2015/hou/index.html">2015/hou</a>.</p>
-<p>…We’ll stop spouting spoilers now. Have fun exploring all the entries!</p>
+<p>…We’ll stop spouting deobfuscation information now. Have fun exploring all the entries!</p>
 <h2 id="remarks-on-some-of-submissions-that-did-not-win">Remarks on some of submissions that did not win</h2>
 <p>As a rule, we try to compile the entries on a variety of platforms. Quite a few
 entries this year could not be built or executed on some of them due to reliance