RuleCreator's types do not support rules without a documentation URL

[JoshuaKGoldberg]

• I have tried restarting my IDE and the issue persists. N/A
• I have updated to the latest version of the packages.
• I have read the FAQ and my problem is not listed.

Repro

Going off the code snippet here: #4124 (comment)

The recommended RuleCreator adds a requirement to provide a urlCreator: (ruleName: string) => string parameter. However, when writing rules that don't have a dedicated docs page -such as local one-of rules with eslint-plugin-local-rules, there should not be a url attached.

Can we make that urlCreator optional so that the docs doesn't attach a url if not needed?

Versions

package	version
@typescript-eslint/experimental-utils	5.3.1
TypeScript	N/A
node	N/A

[JoshuaKGoldberg]

Or, alternately, maybe export createRule on its own? 💡

[bradzacher]

It could probably be optional - yeah.
There's no explicit need for it - but it is definitely best-practice to provide one.

By providing a documentation URL, tools can link directly to the docs which helps people understand linting so, so much more! For example, this is how vscode-eslint gives users access to the docs:

(1) Via a quick-action:

(2) via a link on the "rule ID"

IMO it's probably better to have the default require the function so that docs are the default best-practice. Making it an optional arg means that people will probably just forget about it.
I'd be in support of providing another API like createRuleWithoutDocs so that a user can explicitly opt out of providing documentation.