Added Instagram login method

db/migrate/20160224033122_create_instagram_user_infos.rb

@@ -0,0 +1,11 @@
+class CreateInstagramUserInfos < ActiveRecord::Migration
+  def change
+    create_table :instagram_user_infos do |t|
+      t.integer :user_id
+      t.string :screen_name
+      t.integer :instagram_user_id
+
+      t.timestamps null: false
+    end
+  end
+end