Move documentation-related rules into its own group

.ameba.yml

@@ -1,4 +1,4 @@
-Lint/DocumentationAdmonition:
+Documentation/DocumentationAdmonition:
   Timezone: UTC
   Admonitions: [FIXME, BUG]
 

spec/ameba/base_spec.cr

@@ -12,6 +12,7 @@ module Ameba::Rule
       it "contains rules across all the available groups" do
         Rule.rules.map(&.group_name).uniq!.reject!(&.empty?).sort.should eq %w(
           Ameba
+          Documentation
           Layout
           Lint
           Metrics

spec/ameba/rule/documentation/documentation_admonition_spec.cr

@@ -1,6 +1,6 @@
 require "../../../spec_helper"
 
-module Ameba::Rule::Lint
+module Ameba::Rule::Documentation
   subject = DocumentationAdmonition.new
 
   describe DocumentationAdmonition do

spec/ameba/rule/documentation/documentation_spec.cr

@@ -1,6 +1,6 @@
 require "../../../spec_helper"
 
-module Ameba::Rule::Lint
+module Ameba::Rule::Documentation
   subject = Documentation.new
     .tap(&.ignore_classes = false)
     .tap(&.ignore_modules = false)

src/ameba/config.cr

@@ -326,9 +326,10 @@ class Ameba::Config
 
     macro included
       GROUP_SEVERITY = {
-        Lint:        Ameba::Severity::Warning,
+        Documentation: Ameba::Severity::Warning,
-        Metrics:     Ameba::Severity::Warning,
+        Lint:          Ameba::Severity::Warning,
-        Performance: Ameba::Severity::Warning,
+        Metrics:       Ameba::Severity::Warning,
+        Performance:   Ameba::Severity::Warning,
       }
 
       class_getter default_severity : Ameba::Severity do

src/ameba/rule/documentation/documentation.cr

@@ -1,11 +1,11 @@
-module Ameba::Rule::Lint
+module Ameba::Rule::Documentation
   # A rule that enforces documentation for public types:
   # modules, classes, enums, methods and macros.
   #
   # YAML configuration example:
   #
   # ```
-  # Lint/Documentation:
+  # Documentation/Documentation:
   #   Enabled: true
   #   IgnoreClasses: false
   #   IgnoreModules: true

src/ameba/rule/documentation/documentation_admonition.cr

@@ -1,4 +1,4 @@
-module Ameba::Rule::Lint
+module Ameba::Rule::Documentation
   # A rule that reports documentation admonitions.
   #
   # Optionally, these can fail at an appropriate time.
@@ -27,7 +27,7 @@ module Ameba::Rule::Lint
   # YAML configuration example:
   #
   # ```
-  # Lint/DocumentationAdmonition:
+  # Documentation/DocumentationAdmonition:
   #   Enabled: true
   #   Admonitions: [TODO, FIXME, BUG]
   #   Timezone: UTC