add git files

.github/pull_request_template.md

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+# Pull Request Template
+
+> `PR Template`은 유용한 PR을 통해 리뷰어와 유의미한 소통으로 더 많은 성장을 하기 위함을 목적으로 하고 있습니다. (삭제)
+> 아래의 템플릿은 그대로 사용하셔도 되고 선택적으로 참고만하셔도 됩니다. (삭제)
+> (삭제)가 표기된 가이드 문구는 PR 올리실때 모두 제거해주세요. (삭제)
+
+## 1. 가이드
+
+### 1-1. 배포
+
+> 배포된 페이지가 있다면 링크를 남겨주세요 (삭제)
+
+- [LMS](https://edu.nextstep.camp)
+- [CSS](next-step.github.io/shopping-cart-css)
+
+### 1-2. 로컬 환경
+
+> 로컬 환경 확인이 필요하다면 예시와 같이 남겨주세요 (삭제)
+
+```bash
+# install
+yarn
+
+# run
+yarn dev
+
+# test
+yarn test
+```
+
+## 2. 리뷰 요청 ✍️
+
+### 2-1. 어렵거나 아쉬웠던 점
+
+### 2-2. 나누고 싶은 고민
+
+### 2-3. 중점적으로 리뷰받고 싶은 부분
+
+### 2-4. 새로운 시도 혹은 미션을 통해 도전한 점
+
+### 2-5. 도식화된 자료 혹은 작성된 이미지 형태의 설계 구조
+
+## 3. 질문있어요 🙋
+
+## 4. 요구 사항 ✅
+
+> 예시를 참고하여 체크 박스를 활용해주세요 (삭제)
+
+### 4-1. 필수 요구사항
+
+- [ ] `Storybook` 상호 작용 테스트
+- [ ] `MSW`를 활용한 `API mocking`
+
+### 4-2. 선택 요구사항 (심화)
+
+- [ ] 반응형 레이아웃을 구현한다.

.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/macos,windows,jetbrains+all
+# Edit at https://www.toptal.com/developers/gitignore?templates=macos,windows,jetbrains+all
+
+### JetBrains+all ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### JetBrains+all Patch ###
+# Ignore everything but code style settings and run configurations
+# that are supposed to be shared within teams.
+
+.idea/*
+
+!.idea/codeStyles
+!.idea/runConfigurations
+
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### macOS Patch ###
+# iCloud generated files
+*.icloud
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.toptal.com/developers/gitignore/api/macos,windows,jetbrains+all