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

1998/bas2/README.md

@@ -6,18 +6,21 @@ Statenweg 154 B     (home address)\
 3039 JN Rotterdam\
 The Netherlands
 
+
 ## To build:
 
 ```sh
 make all
 ```
 
+
 ## To use:
 
 ```sh
 ./bas2 < bas2.c
 ```
 
+
 ## Judges' remarks:
 
 ### Questions to ponder:
@@ -36,6 +39,7 @@ a way that differs from a strict reading of one of the
 official IOCCC rules.  What is the rule and what is the octet
 value?
 
+
 ## Author's remarks:
 
 The main obfuscation is the way characters are recognized, which is
@@ -50,6 +54,7 @@ the character).
 
 - `?` and `||` instead of if statements.
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.