docs: added a warning that makes it clear that an update is required.

README.md

@@ -14,6 +14,12 @@ Note: GITHUB_TOKEN does not have the necessary scopes to access projects (beta).
 You must create a token with ***org:write*** scope and save it as a secret in your repository or organization.
 For more information, see [Creating a personal access token](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token).
 
+> :warning: The GitHub API change of 2022-02-23 results in an error message requiring an upgrade to a new version.
+> What is the problem?
+> As of 2022-02-23 , the GitHub API requires that the value of a single select/iteration field be a string instead of an ID!
+> This causes the automation to throw an error message.
+> https://github.blog/changelog/2022-02-23-the-new-github-issues-february-23rd-update/
+
 ## Project board
 
 Since the issues and pull requests from this repository are also managed by this automation, you can take an example from the public project board to see what it looks like.