git mv *.hint -> README.md

There is one exception:

    $ find . -name '*.hint' -execdir git mv '{}' README.md \;
    git statufatal: destination exists, source=1992/albert/albert.hint, destination=1992/albert/README.md

Looking at the two files they differ quite a bit so I've not changed it.
I'll bring this up on GitHub.

1991/rince/README.md

@@ -0,0 +1,80 @@
+Best Game:
+
+    James Bonfield
+    University of Warwick
+    7 Water End,
+    Wrestlingworth,
+    Sandy Beds,
+    SG19 2HA
+    England
+
+
+Judges' comments:
+
+    Make and run as follows:
+
+	make rince
+	rince
+
+    This entry exposed a number of bugs in a number of ANSI C compilers!
+    Because of this, we have provided a number of different versions:
+
+	rince.orig.c	- James Bonfield entry
+			  (many non-GNU ANSI compilers can't grok this code)
+	rince.c		- our non-ANSI version of rince.orig.c
+	rince_ansi.c	- same as rince.c
+			  (most ANSI C compilers can deal with this)
+    
+    You may need to change the makefile depending on what type of system
+    you are running.  See the notes in ansi.mk or common.mk.
+
+
+Selected notes from the author:
+
+    This program is a simple puzzle type game. (I'll leave you to play
+    it to see the rest of it .. :-) .)  The general idea was to try and
+    write the smallest playable game, but keep the playability and
+    enjoyment high. 
+    
+		    Instructions (rot 13 to read).
+		    ==============================
+
+    Xrl gb znc:-
+
+			    |
+     ######                 | | | /\   /--\  ==|    /\ | |  Qverpgbany xrlf 
+     ######  Fbyvq Jnyy     | ----||    \/     /\   ||----  (haybpx qbbef bs
+     ######                 |     \/  ==|     \--/  \/       gur fnzr qverpgvba)
+			    |               
+			    |   <<                    >>    Qbbef. Haybpxrq ol
+	     Oynax fcnpr    |   <<   iiiiii  ^^^^^^   >>    gur nobir xrlf.
+			    |   <<                    >>
+			    |              
+       ___                  | b__B\   B__B   ^__^   /B__b   
+      /   \  'Pehfunoyr'    | \___/  /----\ /----\  \___/  Gur sbhe fcevgrf sbe
+      \___/    obhyqre      |  _/_\  _/  \_ _/  \_  /_\_   lbhe punenpgre :-)
+			    |                    
+       ___   hapehfunoyr    |   /\   Qvnzbaqf. Gurl pna rvgure or sbhaq ylvat
+      /@@@\    obhyqre      |  <  >  nebhaq (vs bayl!) be znahsnpgher ol chfuvat
+      \@@@/                 |   \/   gjb 'pehfunoyr' ebpxf gbtrgure.
+			    |              
+
+    Gur trareny vqrn bs gur tnzr vf gb pbyyrpg nyy gur qvnzbaqf. Guvf zhfg
+    or qbar va gur zvavzhz nzbhag bs zbirf. V'ir nyybjrq n znetva bs 5
+    zbirf juvpu oevatf gur zbirf nyybjrq gb 484. (nygre gur inyhr bs 'h' va
+    gur cebtenz gb frg gur znk zbirf nyybjrq)
+
+    Gurer ner gjb glcrf bs obhyqref. Obgu pna or chfurq nebhaq, ohg bayl
+    gur ubyybj (pehfunoyr) barf pna or ghearq vagb qvnzbaqf (ol chfuvat vg
+    bagb nabgure ubyybj bar).
+
+    Bs gur sbhe glcrf bs qbbef (naq xrlf) bayl 3 unir orra qrsvarq. Guvf
+    jnf qbar gb xrrc gur fbhepr nf ybj nf cbffvoyr (nf V bayl hfrq 3 va gur
+    znc).  Gb haybpx n qbbe fvzcyl chfu n xrl vagb gur pbeerfcbaqvat qbbe.
+    Gnxr pner gung vg'f snpvat va gur pbeerpg qverpgvba.
+
+Copyright (c) 1991, Landon Curt Noll & Larry Bassel.
+All Rights Reserved.  Permission for personal, educational or non-profit use is
+granted provided this this copyright and notice are included in its entirety
+and remains unaltered.  All other uses must receive prior permission in writing
+from both Landon Curt Noll and Larry Bassel.