Changing heading level of 'Alternate code'

Change level 3 (###) to level 2 (##):

    sgit -e 's/^### \(Alternate code\)/## \1/g' '*README.md'

which is the same as:

    sgit -e 's/^### Alternate code/## Alternate code/g' '*README.md'

This is per discussion in GitHub.

2001/dgbeards/README.md

@@ -18,7 +18,7 @@ make
 ```
 
 
-### Alternate code:
+## Alternate code:
 
 The author provided a way to speed it up a bit and also how to make it so it
 doesn't crash on losing.  The idea that it crashes on losing was too good to