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

2012/deckmyn/README.md

@@ -3,12 +3,14 @@
 Alex Deckmyn\
 <alex.deckmyn@gmail.com>
 
+
 ## To build:
 
 ```sh
 make
 ```
 
+
 ## To use:
 
 A shell interpreter with proper backtick interpolation is required.
@@ -17,12 +19,14 @@ A shell interpreter with proper backtick interpolation is required.
 ./deckmyn "`cat deckmyn.c`" "`cat musicfile.txt`" > sheetmusic.pbm
 ```
 
-## Try:
+
+### Try:
 
 ```sh
 ./deckmyn "`cat deckmyn.c`" "`cat example_greensleeves`" > greensleeves.pbm
 ```
 
+
 ## Judges' remarks:
 
 The C of this entry is definitely sharp. The program cleverly uses its own
@@ -37,6 +41,7 @@ Shell](https://en.wikipedia.org/wiki/C_shell).
 Please use [Bourne-family shells](https://en.wikipedia.org/wiki/Bourne_shell) to
 run this entry.
 
+
 ## Author's remarks:
 
 ### Example use
@@ -138,6 +143,7 @@ maintaining a diversified code base. It is therefore not... Oh all right.
 character nested conditional expression.
 - `printf()` is also used for its return value.
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.