create model Candidate
execute `rails g model candidate uid:string nickname:string image_url:string`
migrate candidates
add runner for inserting candidate people data.
* execute `be rails runner lib/batch/insert_to_members_from_github_contributors.rb`
generate model vote
* execute `rails g model vote voting_user_id:integer voted_user_id:integer message:string`
* migrate
generate controller votes
* execute `bundle exec rails generate controller votes`
Viewとcontrollerの定義を追加
投票画面を作る
* ラジオボタンでメンバーを選択する
* メッセージ入力画面への導線を作る
routes.rbの記述位置を合わせる
拡張子をslimからhtml.slimに変更
modfiy his wife name
* remove hash rocket
* more less slim class's expression
* add routes /votes
Merge pull request #6 from happy-bonbon0605/feature/voting

投票機能（メッセージ画面への導線のみ追加）