Move Style/Documentation into the main config file

I don't think anyone intends to write documentation for the app

.rubocop.yml

@@ -61,6 +61,9 @@ Rails/SkipsModelValidations:
 Style/BracesAroundHashParameters:
   EnforcedStyle: context_dependent
 
+Style/Documentation:
+  Enabled: false
+
 Style/FormatStringToken:
   EnforcedStyle: template
 

.rubocop_todo.yml

@@ -174,10 +174,6 @@ Style/AsciiComments:
   Exclude:
     - 'test/models/message_test.rb'
 
-# Offense count: 263
-Style/Documentation:
-  Enabled: false
-
 # Offense count: 27
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: annotated, template, unannotated