Update ux_strategy.md

[fanatiicx]

Minor typo

Closes #[issue number]

If an article related PR

• [x] I have checked that my suggestion follows the Contribution guide

• [ ] I have added which issue this PR closes

• [ ] I have 0 warnings from Danger.js

• [ ] If I have added images, they are in /files/ folder

If other PR

• [ ] I have added which issue this PR closes

[prokopsimek]

@fanatiicx Thanks for the fix! 🤞