Improve default config

Author: andrey-tech

README.md

@@ -146,11 +146,11 @@ colorizer:
       ccn:
         green: [ 1, 7 ]
         yellow+bold: [ 8, 10 ]
-        red+bold: [ 11, null ]
+        red+bold: [ 11 ]
 
       crap:
         green: [ 0, 29 ]
-        red+bold: [ 30, null ]
+        red+bold: [ 30 ]
 ```
 
 ## Exit codes

config/phpunit-cobertura-formatter.yml.dist

@@ -30,8 +30,8 @@ colorizer:
       ccn:
         green: [ 1, 7 ]
         yellow+bold: [ 8, 10 ]
-        red+bold: [ 11, null ]
+        red+bold: [ 11 ]
 
       crap:
         green: [ 0, 29 ]
-        red+bold: [ 30, null ]
+        red+bold: [ 30 ]