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

2011/richards/README.md

@@ -11,7 +11,7 @@ make
 ```
 
 
-### Bugs and (Mis)features
+### Bugs and (Mis)features:
 
 The current status of this entry is:
 
@@ -29,7 +29,7 @@ For more detailed information see [2011 richards in bugs.md](/bugs.md#2011-richa
 ```
 
 
-## Try:
+### Try:
 
 ```sh
 echo '10 9 8 7 6 5 4 3 2 1*p*p*p*p*p*p*p*p*p' | ./richards