convert spoiler language and towards deobfuscation language

2018/burton2/README.md

@@ -157,13 +157,11 @@ designed to allow exhaustive, hand-counted values for comparison with the tool v
 These test cases were vital in debugging and regression testing, and provided a way to
 determine which tool was correct when there were differences.
 
-```
-    A version of this tool in more clearly written C
-    is presented for the Judge's consideration as a more accurate replacement for `iocccsize`.
-    This obfuscated entry is derived from (and compatible with) that code,
-    but due to obfuscation, has had some significant, deep changes for the contest.
-    Nevertheless, the more clearly written code remains a spoiler for this entry.
-```
+>   A version of this tool in more clearly written C<br>
+>   is presented for the Judge's consideration as a more accurate replacement for `iocccsize`.<br>
+>   This obfuscated entry is derived from (and compatible with) that code,<br>
+>   but due to obfuscation, has had some significant, deep changes for the contest.<br>
+>   Nevertheless, the more clearly written code remains deobfuscation information about this entry.
 
 NB: `iocccsize` gets a different answer from `tac` on its own
 [iocccsize.c](%%REPO_URL%%/2018/iocccsize.c) source code;