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

1991/ant/README.md

@@ -6,12 +6,14 @@ Mortice Kern Systems Inc.	#CL-23\
 Waterloo, On			Waterloo, On\
 Canada, N2J 2W9			Canada, N2L 6G9
 
+
 ## To build:
 
 ```sh
 make all
 ```
 
+
 ## To use:
 
 ```sh
@@ -21,13 +23,15 @@ make all
 NOTE: the file must already exist and not specifying any arg will make the
 program exit without doing anything.
 
-## Try:
+
+### Try:
 
 ```sh
 cp README.md hill
 ./ant hill
 ```
 
+
 ## Judges' remarks:
 
 The author was kind enough to supply a list of references below,
@@ -44,6 +48,7 @@ NOTE: to enter form feed you should be able to hit `ctrl-L`. This will allow you
 to exit insert mode rather than ESC like in normal vi(m). See the author's
 commands section for other commands.
 
+
 ## Author's remarks:
 
 Ant's Editor vIOCCC91
@@ -123,6 +128,7 @@ screen with long lines.  Paging up and down should work correctly, however.
 
 [net90]	"Editor 101/102" articles from comp.editors
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.