Improve show contest buttons

app/controllers/contests_controller.rb

@@ -13,6 +13,8 @@ class ContestsController < ApplicationController
     authorize @contest
 
     @title = I18n.t("contests.show.title", name: @contest.name)
+    @action_name = "Edit"
+    @action_path = edit_contest_path(@contest)
     @contestants = @contest.contestants.order(:name)
     @puzzles = @contest.puzzles.order(:id)
     @messages = @contest.messages.order(:id)