Fix typos in pure-cxx-modules.md

[pchalupa]

This PR fixes a few minor typos in the pure-cxx-modules.md file.

[netlify]

✅ Deploy Preview for react-native ready!

Name	Link
🔨 Latest commit	3b8eb16
🔍 Latest deploy log	https://app.netlify.com/projects/react-native/deploys/691c87710f8b025ed5ebff09
😎 Deploy Preview	https://deploy-preview-4887--react-native.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[Simek]

Hey @pchalupa, thanks for catching and correcting those typos! 👍

Can you backport the changes to few versioned docs, or at least to 0.82 docs, so the default displayed content also contains the corrections?

[pchalupa]

Hey @pchalupa, thanks for catching and correcting those typos! 👍

Can you backport the changes to few versioned docs, or at least to 0.82 docs, so the default displayed content also contains the corrections?

Hello, fixes are backported in the 3b8eb16 commit.

[Simek]

Whoops, looks like https://yarnpkg.com/ is down. 🤔 Will re-run the CI soon, when it's back online.

[Simek]

Thanks for the corrections and follow up, LGTM! 🚀