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

2012/blakely/README.md

@@ -4,19 +4,22 @@ Philip Blakely\
 UK\
 <pmblakely@gmail.com>
 
+
 ## To build:
 
 ```sh
 make
 ```
 
+
 ## To use:
 
 ```sh
 ./blakely "RPN formula" resolution > output.gif
 ```
 
-## Try:
+
+### Try:
 
 ```sh
 ./blakely "xx*yy*+" 64 > paraboloid.gif
@@ -26,6 +29,7 @@ make
 time ./blakely 0 250 > flat.gif
 ```
 
+
 ## Judges' remarks:
 
 Several IOCCC themes ([RPN
@@ -38,6 +42,7 @@ The checkerboard pattern in the output can be broken. Could you figure out how?
 
 Larger GIF files confuse some image viewers.
 
+
 ## Author's remarks:
 
 ### Remarks
@@ -144,6 +149,7 @@ cos](https://en.wikipedia.org/wiki/Sine_and_cosine) are not used.
 (Note that the author may or may not be able to answer all of the above
 questions.)
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.