move entry information into a single years.html file

Probably one of the most requested mods was to merge years-spoiler.html
with years.html as how an entry does what it does, not what it does
at a high level is what is important.

This mod also allows us to maintain only one file for entry info.

2019/README.md

@@ -42,8 +42,8 @@ The "Most likely to be awarded" (ciura) has an amazing vocabulary!
 
 There are again nods to winners of the years:
 
-	[1991/davidguy](http://ioccc.org/years-spoiler.html#1991_davidguy)
-	[2011/blakely](http://ioccc.org/years-spoiler.html#2011_blakely)
+	[1991/davidguy](http://ioccc.org/years.html#1991_davidguy)
+	[2011/blakely](http://ioccc.org/years.html#2011_blakely)
 
 These nods to not run afoul of the guideline: