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

1996/schweikh3/README.md

@@ -7,12 +7,14 @@ D-71384 Weinstadt\
 Germany\
 <http://www.schweikhardt.net>
 
+
 ## To build:
 
 ```sh
 make all
 ```
 
+
 ## To use:
 
 **WARNING: DO NOT RUN this program without reading this text down to the end!**
@@ -24,6 +26,7 @@ You have been warned.
 ./schweikh3
 ```
 
+
 ## Judges' remarks:
 
 The source fails to compile on compilers that recognize the inline
@@ -48,6 +51,7 @@ NOTE: On some systems such as SunOS, one may need to compile with:
 	      schweikh3.c -o schweikh3
 ```
 
+
 ## Author's remarks:
 
 ### Why I think my entry is obfuscated
@@ -171,6 +175,7 @@ value returned by time seems to 'hang' sometimes when the OS thrashes.
 Exceeding a threshold of 5 seconds may be detected only after half a
 minute or so.
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.