update year level README files

Move copyright notice to the end.

Add a standard comment about the newly added `README.md` files.

Clean up trailing whitespace.

Fixed a few minor typos.

2013/README.md

@@ -1,16 +1,15 @@
 2013 marked the "The Twenty Second International Obfuscated C Code Contest"
 ===========================================================================
 
-Copyright (C) 2013, Landon Curt Noll, Simon Cooper, and Leonid A.
-Broukhis. All Rights Reserved. Permission for personal, educational
-or non-profit use is granted provided this copyright and notice are
-included in its entirety and remains unaltered.  All other uses
-must receive prior permission from the contest judges.
-
 
 Standard IOCCC stuff
 --------------------
 
+Look at the README.md file for the given winner for information
+on how to compile the winner and how to run the winning program.
+Look at the winning source and try to figure how it does what it does!
+You may then wish to look at the Author's comments for even more details.
+
 The IOCCC has a web site and now has a number of international mirrors.
 The primary site can be found at,
 
@@ -19,11 +18,6 @@ The primary site can be found at,
 Use make to compile entries.  It is possible that on non-Un\*x / non-Linux
 systems the makefile needs to be changed.  See the Makefile for details.
 
-Look at the source and try to figure out what the programs do, and run
-them with various inputs.  If you want to, look at the hints files for
-spoilers - this year we included most of the information included
-by the submitter.
-
 Read over the makefile for compile/build issues.  Your system may require
 certain changes (add or remove a library, add or remove a #define).
 
@@ -35,7 +29,7 @@ local compiler.
 Remarks on some of the entries
 ------------------------------
 
-We believe you will again be impressed with this year's winners. 
+We believe you will again be impressed with this year's winners.
 
 This year, several 8 people won 9 people won 15 awards.  For the
 first time in the history of the contest, one person, Yusuke Endoh,
@@ -112,12 +106,10 @@ For news of the next contest watch:
 
 >	<http://www.ioccc.org/>
 
+=-=
 
---------------------------------------------------------------------------------
-<!--
-(c) Copyright 1984-2013, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
-This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
-
-[judges]: http://www.ioccc.org/judges.html
-[cc]: http://creativecommons.org/licenses/by-sa/3.0/
--->
+Copyright (C) 2013, Landon Curt Noll, Simon Cooper, and Leonid A.
+Broukhis. All Rights Reserved. Permission for personal, educational
+or non-profit use is granted provided this copyright and notice are
+included in its entirety and remains unaltered.  All other uses
+must receive prior permission from the contest judges.