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

1992/imc/README.md

@@ -8,12 +8,14 @@ Oxford\
 OX1 4AW\
 England
 
+
 ## To build:
 
 ```sh
 make all
 ```
 
+
 ## To use:
 
 ```sh
@@ -23,6 +25,7 @@ make all
 ./imc\
 ```
 
+
 ## Judges' remarks:
 
 The program is more interesting to run on workstations that can make use of a
@@ -35,6 +38,7 @@ NOTE: The original winning source assumed that exit() returned a value which cau
 problems for some systems where exit() returns a void.  The file [imc.c](imc.c) has been
 modified to avoid this problem.
 
+
 ## Author's remarks:
 
 ### Portability
@@ -164,6 +168,7 @@ Here are a couple of good pictures to draw:
 ./imc -s512,512 -j-.523,-.535 > screen2.ras
 ```
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.