Twenty Twenty-One: Spelling correction of inline documentation

[tanvirul]

Spelling correction of a few inline documentation.

[mukesh27]

Hi there!

Welcome to WordPress Trac.

Twenty Twenty-One uses SCSS so the code needs to be updated in the scss file and then be
compiled to update the style.css file, the RTL style, and the style for Internet Explorer.

The instructions for how to do this are limited, let me know if I can clarify them:
​https://github.com/WordPress/twentytwentyone/blob/trunk/CONTRIBUTING.md#getting-started-with-development

52042.patch​ need update so add needs-refresh tag

[SergeyBiryukov]

In 49795:

Twenty Twenty-One: Fix typos in some inline comments.

Props tanvirul, mukesh27.
Fixes #52042.

[SergeyBiryukov]

Reopening for backporting to the 5.6 branch.

[desrosj]

In 49818:

Twenty Twenty-One: Fix typos in some inline comments.

Props tanvirul, mukesh27.
Merges [49795] to the 5.6 branch.
Fixes #52042.

[desrosj]

Adding a custom keyword for querying tickets included in the Twenty Twenty-One version 1.1 release in the future.