Fix typo in documentation group tags

lib/danger/helpers/comments_helper.rb

@@ -14,7 +14,7 @@ def markdown_parser(text)
  Kramdown::Document.new(text, input: "GFM", smart_quotes: %w(apos apos quot quot))
  end
 
- # !@group Extension points
+ # @!group Extension points
  # Produces a markdown link to the file the message points to
  #
  # request_source implementations are invited to override this method with their
@@ -30,7 +30,7 @@ def markdown_link_to_message(message, hide_link)
  "#{message.file}#L#{message.line}"
  end
 
- # !@group Extension points
+ # @!group Extension points
  # Determine whether two messages are equivalent
  #
  # request_source implementations are invited to override this method.
@@ -46,6 +46,8 @@ def messages_are_equivalent(m1, m2)
  m1 == m2
  end
 
+ # @endgroup
+
  def process_markdown(violation, hide_link = false)
  message = violation.message
  message = "#{markdown_link_to_message(violation, hide_link)}#{message}" if violation.file && violation.line

lib/danger/helpers/comments_parsing_helper.rb

@@ -1,7 +1,7 @@
 module Danger
  module Helpers
  module CommentsParsingHelper
- # !@group Extension points
+ # @!group Extension points
  # Produces a message-like from a row in a comment table
  #
  # @param [String] row
@@ -12,6 +12,8 @@ def parse_message_from_row(row)
  Violation.new(row, true)
  end
 
+ # @endgroup
+
  def parse_tables_from_comment(comment)
  comment.split("</table>")
  end