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

1994/tvr/README.md

@@ -6,19 +6,22 @@ Melkonkatu 5 A 8\
 00210 Helsinki\
 Finland
 
+
 ## To build:
 
 ```sh
 make all
 ```
 
+
 ## To use:
 
 ```sh
 ./tvr mode screensize/2 < colormapfile
 ```
 
-## Try:
+
+### Try:
 
 ```sh
 ./tvr 0 128 < tvr.color		(for color displays)
@@ -49,6 +52,7 @@ The fractally minded may be able to detect that mode 0 does not calculate
 Mandelbrot/Julian sets correctly.  Can you find the bug?  Better still, can you
 fix it without breaking something else?
 
+
 ## Author's remarks:
 
 ### Interactive Fractals for X Window System
@@ -216,6 +220,7 @@ should be checked exactly (by comparing `x*x+y*y` with `2*2`), or else artifacts
 are introduced.  The result of this error is a "bubbly" appearance (at least in
 mono).
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.