.rubocop.yml in webauthn-0.1.0 vs .rubocop.yml in webauthn-0.2.0

@@ -1,15 +1,26 @@
 AllCops:
-  TargetRubyVersion: 2.5
+  TargetRubyVersion: 2.4
   DisabledByDefault: true
 
 Bundler:
   Enabled: true
 
 Gemspec:
   Enabled: true
 
 Layout:
+  Enabled: true
+
+Lint:
+  Enabled: true
+
+Metrics/LineLength:
+  Max: 120
+  Exclude:
+    - spec/support/seeds.rb
+
+Naming:
   Enabled: true
 
 Performance:
   Enabled: true