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.

1992/ant/README.md

@@ -0,0 +1,38 @@
+Best Utility:
+
+	Anthony C Howe
+	Mortice Kern Systems Inc.
+	Unit 1, 14 Weber Street North
+	Waterloo, Ontario
+	N2J 3G4
+	Canada
+
+
+Judges' comments:
+
+   To use:
+	make am
+	am ant.test.mk
+    
+    Like much of Posix, obfuscation has its place.  Your task is to
+    figure out where.
+
+    This entry comes complete with a Posix-like command description.
+    Interested Posix balloters should lobby the IEEE for an obfuscated 
+    P1003 sub-committee.
+
+    We also suggest that you try:
+	make am
+	am Makefile am_clobber		<-- clobber everything except am
+	am Makefile all
+
+
+Selected notes from the author:
+
+    See the file ant.README.
+
+Copyright (c) 1992, 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.