Fixes in 1994/dodsond2

Format fixes in README.md.

Add missing gz file and add link to it (before it only referred to it as
text).

1994/dodsond2/README.md

@@ -10,21 +10,22 @@
 
         make all
 
-## To run
+## To run:
 
 	./dodsond2
 
-## Judges' comments
+## Judges' comments:
 
-    The original source file may be found in dodsond2.gz.  For people
+The original source file may be found in [dodsond2.gz](dodsond2.gz).  For people
-    who don't have gunzip, an un-zipped version is provided as dodsond2.c.
+who don't have `gunzip`, an unzipped version is provided as
+[dodsond2.c](dodsond2.c).
 
 Each year people find new ways to squeeze more and more out of the
 contest rules.  Next year, entries that use compression utilities
 to get around the size limit will find themselves squeezed out of
 the contest!
 
-## Author's comments
+## Author's comments:
 
 Go searching for the Wumpus in the Caverns of Doom!  But be careful...
 There are pits and bats waiting to seal your fate, as well as a