Readme update

[nschubach]

Description

Information about what you changed for this PR

Jira Ticket

• PEN-

Acceptance Criteria

copy from ticket

Test Steps

• Add test steps a reviewer must complete to test this PR

Effect Of Changes

Before

Example: When I clicked the search button, the button turned red.

[include screenshot or gif or link to video, storybook would be awesome]

After

Example: When I clicked the search button, the button turned green.

[include screenshot or gif or link to video, storybook would be awesome]

Dependencies or Side Effects

Examples of dependencies or side effects are:

• Additional settings that will be required in the blocks.json
• Changes to the custom fields which will require users to reconfigure features
• Update to css framework or SDK
• Dependency on another PR that needs to be merged first

Review Checklist

The author of the PR should fill out the following sections to ensure this PR is ready for review.

• Confirmed all the test steps above are working
• Confirmed there are no linter errors
• Confirmed this PR has reasonable code coverage
  • Confirmed this PR has unit test files
  • Ran npm test, made sure all tests are passing
  • If the amount of work to write unit tests for this change are excessive,
    please explain why (so that we can fix it whenever it gets refactored).
• Confirmed relevant documentation has been updated/added.