Clarify "counter example" meaning

[qawt]

"Counter example" has a specific meaning. Reworded the language to clarify that it points to the example about counter state variable.

[reactjs-bot]

Deploy preview for reactjs ready!

Built without sensitive environment variables with commit fac3486f96d7dc87a3fcf523fd55f000bd090876

https://deploy-preview-3487--reactjs.netlify.app

[github-actions[bot]]

Size Changes

📦 Next.js Bundle Analysis

This analysis was generated by the next.js bundle analysis action 🤖

This PR introduced no changes to the javascript bundle 🙌

[meta-cla[bot]]

Hi @qawt!

Thank you for your pull request.

We require contributors to sign our Contributor License Agreement, and yours needs attention.

You currently have a record in our system, but the CLA is no longer valid, and will need to be resubmitted.

Process

In order for us to review and merge your suggested changes, please sign at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need to sign the corporate CLA.

Once the CLA is signed, our tooling will perform checks and validations. Afterwards, the pull request will be tagged with CLA signed. The tagging process may take up to 1 hour after signing. Please give it that time before contacting us about it.

If you have received this in error or have any questions, please contact us at [email protected]. Thanks!