examples: update with-styled-components README

[JamBalaya56562]

What?

Delete Notes on next/link in the with-styled-components example.

Why?

as prop of next/link is no longer required at v10.0.0 Next.js.

Therefore, the as prop provided by styled doesn't collide with the next/Link's as prop.

CC: @samcx

Adding or Updating Examples

• The "examples guidelines" are followed from our contributing doc https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md
• Make sure the linting passes by running pnpm build && pnpm lint. See https://github.com/vercel/next.js/blob/canary/contributing/repository/linting.md

[ijjk]

Allow CI Workflow Run

• approve CI run for commit: 1aaf8fd

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer

[samcx]

Thank you for submitting a PR!