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.

1990/cmills/README.md

@@ -0,0 +1,45 @@
+Best Game:
+
+	Chris Mills
+	Wyse Technology
+	3471 N. 1st St.
+	San Jose CA 95134
+	USA
+
+
+Judges notes:
+
+    Compile notes:
+
+       cc -DM=500 -DN=52 -DX="srand((int)time(0L))" -DV=void -o cmills cmills.c
+
+	-DM=<max bet allowed>
+	-DN=<52 * number of decks used>
+	-DX=<how to seed the rand() generator>
+	-DV=<void ot int>
+
+    Usage: cmills [starting_cash]
+
+
+Selected notes from the author:
+
+    This is a blackjack program.  It does splits, doubling down,
+    insurance, etc.  
+
+    As best I can figure, it should be ANSI-compliant, as well as
+    portable to BSD & sysV (as well as the irritating compiler I
+    was using which assumes x=*p++ means x*=p++!).  It is
+    reasonably robust in its error handling---it won't let you
+    split, double, etc. unless you actually have the cash, etc.  To
+    terminate the program, hit EOF or type 0 or a negative number
+    for you wager.
+
+    The way it deals with splits is particularly cool (IMHO).  You
+    can split many times, and it will show all hands as they are
+    played.
+
+Copyright (c) 1990, 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.