Andy/fix init comment

[andy-clapson]

resolves https://github.com/dbt-labs/dbt-core/issues/5791

Description

Checklist

• [x] I have read the contributing guide and understand what's expected of me
• [x] I have signed the CLA
• [x] I have run this code in development and it appears to resolve the stated issue
• [x] This PR includes tests, or tests are not required/relevant for this PR
• [x] I have opened an issue to add/update docs, or docs changes are not required/relevant for this PR
• [x] I have run changie new to create a changelog entry

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[jtcohen6]

Hey @andy-clapson, thanks for the contribution! Two questions:

• Are you able to sign the CLA? If not, we won't be able to accept the changes unfortunately :( even though they're super small!
• If you are able, could you open a super quick issue for the change, just so we can track it in our changelog?

[andy-clapson]

Hey @andy-clapson, thanks for the contribution! Two questions:

* Are you able to sign the CLA? If not, we won't be able to accept the changes unfortunately :( even though they're super small!

* If you are able, could you open a super quick issue for the change, just so we can track it in our changelog?

Yep, done. Issue is here: https://github.com/dbt-labs/dbt-core/issues/5791

[andy-clapson]

@jtcohen6 I've done all this, and added the changelog entry as well

[andy-clapson]

pushed commit to address failing test - I don't want to expand the scope of this PR, but that f-string readme used in the init asserts seems like it's repeated 4 times. Could I suggest/add a refactor here of either defining a constant for it, or maybe adding it to a constants module/config?