URL Redirection

[kafleg]

Issue Description

The link found in this paragraph, All themes are closely reviewed, and must meet rigorous [theme review guidelines](https://developer.wordpress.org/theme/release/theme-review-guidelines/) to ensure quality and security. is redirected. Update the page with the proper link.

URL of the Page with the Issue

https://developer.wordpress.org/themes/getting-started/what-is-a-theme/

Section of Page with the issue

Themes in WordPress.org section. https://developer.wordpress.org/themes/getting-started/what-is-a-theme/#themes-on-wordpress-org

[kafleg]

Assign this to me.

[github-actions]

Heads up @kafleg @carolinan @TeBenachi - the "themes" label was applied to this issue.

[zzap]

Heads up @WordPress/docs-issues-coordinators, we have a new issue open. Time to use 'em labels.

[kafleg]

Done!