fix standard headers and header spacing in winner README.md files

1989/roemer/README.md

@@ -3,23 +3,27 @@
 Lievaart, Roemer B.\
 Netherlands
 
+
 ## To build:
 
 ```sh
 make all
 ```
 
-## Try:
+
+### Try:
 
 ```sh
 ./roemer
 ```
 
+
 ## Judges' remarks:
 
 Do you know what this program does?  If you do, look again, there is more here
 than meets the PI.
 
+
 ## Author's remarks:
 
 Passes lint, but not with the strictest options, for it contains some
@@ -30,6 +34,7 @@ independent.
 You are very much invited to pass this program through a C-beautifier (first
 strip newlines and tabs, if your `cb` can't do that).
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.