Add contest information on contest page

Signed-off-by: Kostiantyn Kostiuk <[email protected]>

app/views/contests/show.html.erb

@@ -0,0 +1 @@
+<%== contest.info %>

db/migrate/20240211194031_add_info_to_contests.rb

@@ -0,0 +1,5 @@
+class AddInfoToContests < ActiveRecord::Migration[7.0]
+  def change
+    add_column :contests, :info, :text, null: false, default: ''
+  end
+end

db/structure.sql

@@ -195,7 +195,8 @@ CREATE TABLE public.contests (
     main_judge character varying DEFAULT ''::character varying NOT NULL,
     head_of_organizing_committee character varying DEFAULT ''::character varying NOT NULL,
     secretary_of_organizing_committee character varying DEFAULT ''::character varying NOT NULL,
-    head_of_appeal_commission character varying DEFAULT ''::character varying NOT NULL
+    head_of_appeal_commission character varying DEFAULT ''::character varying NOT NULL,
+    info text DEFAULT ''::text NOT NULL
 );
 
 
@@ -926,6 +927,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20230902145309'),
 ('20230930203405'),
 ('20231110173126'),
-('20240203172343');
+('20240203172343'),
+('20240211194031');