Update the Custom Rule Creation documentation

[beena-yatin-kanyal]

In the documentation available at this link, the imports listed at this are not available in the Zally code anymore. Please update the documentation so that readers can correctly understand and work to create better documentation as per the organization.

import de.zalando.zally.rule.api.Check
import de.zalando.zally.rule.api.Context
import de.zalando.zally.rule.api.Rule
import de.zalando.zally.rule.api.Severity
import de.zalando.zally.rule.api.Violation

Thanks.

[ePaul]

Those classes are now in package org.zalando.zally.rule.api (instead of de.*).

[beena-yatin-kanyal]

Thanks. closing this issue.

A recommendation is to please update the documentation.

[ePaul]

I'm reopening the issue for updating the documentation. (Feel free to open a PR.)