Complete sprint 2 exercises

### Link to the coursework

https://github.com/CodeYourFuture/Module-Data-Groups/tree/main/Sprint-2

### Why are we doing this?

These challenges are designed to develop your problem-solving skills.

### Maximum time in hours

6

### How to get help

Share your blockers in your class channel
https://curriculum.codeyourfuture.io/guides/asking-questions/

### How to submit

1. Fork to your Github account.
2. Make a branch for this project.
3. Make regular small commits in this branch with clear messages.
4. When you are ready, open a PR to the CYF repo, following the instructions in the PR template.

There are several projects in this repo. [Make a new branch](https://simpledev.io/lesson/create-branch-gh-desktop-1) for each project.

issue にリンクされている Sprint-2 の課題から始め、そこにある各プロジェクトを確認します。プロジェクトごとに個別のブランチを作成し、6時間の見積もり以内に演習を完了して、その完了を CodeYourFuture リポジトリへの PR で、同リポジトリの PR テンプレートに従って確認します。

索引モデルが issue の本文から書いたものです。