ICU-22875 Fixed invisible angle brackets

[Calorion]

Made angle brackets and enclosed text visible.

Checklist

• [x] Required: Issue filed: ICU-22875
• [x] Required: The PR title must be prefixed with a JIRA Issue number.
• [x] Required: The PR description must include the link to the Jira Issue, for example by completing the URL in the first checklist item
• [x] Required: Each commit message must be prefixed with a JIRA Issue number.
• [ ] Issue accepted (done by Technical Committee after discussion)
• [x] Tests included, if applicable
• [x] API docs and/or User Guide docs changed or added, if applicable

[CLAassistant]

All committers have signed the CLA.

[markusicu]

Oh, there is one thing missing: Please amend the commit by prepending the commit message with the ticket and a space: ICU-22875

[Calorion]

I tried; apparently the only way to do that is from the command line.

[markusicu]

I tried; apparently the only way to do that is from the command line.

That appears to be true: https://github.com/orgs/community/discussions/8891

This discussion has some instructions: https://stackoverflow.com/a/67007037 The most important parts are git commit --amend and git push -f

[Calorion]

That's nice. I'm just an end user who noticed a typo. I'm not going to install and learn to use git in order to fix your error.

[markusicu]

replaced by https://github.com/unicode-org/icu/pull/3147