docs: Update README

[sungik-choi]

Self Checklist

• I wrote a PR title in English and added an appropriate label to the PR.
• I wrote the commit message in English and to follow the Conventional Commits specification.
• I added the changeset about the changes that needed to be released. (or didn't have to)
• I wrote or updated documentation related to the changes. (or didn't have to)
• I wrote or updated tests related to the changes. (or didn't have to)
• I tested the changes in various browsers. (or didn't have to)
  • Windows: Chrome, Edge, (Optional) Firefox
  • macOS: Chrome, Edge, Safari, (Optional) Firefox

Related Issue

• v2.0.0 #1800

Summary

Update README.md

Details

• 다음 버전의 내용에 맞게 문서 내용을 업데이트합니다.
• Chore: bezier-icons 기존 문서의 잘못된 예제 수정
• Chore: storybook preload 잘못된 코드 수정

Breaking change? (Yes/No)

No

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7152a8f

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[github-actions]

Chromatic Report

🚀 Congratulations! Your build was successful!

• Storybook Preview
• Chromatic Build

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.48%. Comparing base (9e572cc) to head (7152a8f).
Report is 4 commits behind head on alpha.

Additional details and impacted files

@@           Coverage Diff           @@
##            alpha    #2033   +/-   ##
=======================================
  Coverage   87.48%   87.48%           
=======================================
  Files         143      143           
  Lines        2588     2588           
  Branches      815      816    +1     
=======================================
  Hits         2264     2264           
  Misses        294      294           
  Partials       30       30           

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