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

2006/hamre/README.md

@@ -3,6 +3,7 @@
 Steinar Hamre\
 Norway
 
+
 ## To build:
 
 ```sh
@@ -16,12 +17,14 @@ make
 ./hamre math_expression_string
 ```
 
-## Try:
+
+### Try:
 
 ```sh
 ./hamre '-1+4/3*(2+1/(3/2*(7/2-7/3+1/6)))/2'
 ```
 
+
 ## Judges' remarks:
 
 An irrationally coded source presents rational things!
@@ -32,6 +35,7 @@ of supporting a new operator by way of an existing macro
 in the source.  And can you determine which macro this is
 and understand the purpose of its arguments?
 
+
 ## Author's remarks:
 
 This is a calculator for [rational
@@ -71,6 +75,7 @@ help hide most of the uses of these numbers away. All macros and
 variables are easy-to-remember single character abbreviations, from
 some language, meaningful to the purpose(s) of the macro, I hope.
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.