List all steps in the Quick start to clarify the process

Problem/Motivation

I was trying out the module, but wasn't sure how to do the final step of copying content. Using an Update Hook is mentioned, but I have no experience with those, like the vast majority of Drupal site builders also don't have.

So after creating a field updater, I wasn't sure how to do the final step of actually copying the content from a Source field to a Target field.

A Quick start should list the minimally required steps to help new users try out the module, and get started using it. To lower the barrier of entry, and be as inclusive as possible, it should not assume that the users are experts in coding.

Therefore, using Drush in the Quick start would be the preferred method to use, since almost everyone is using Drush.

Perhaps it can be added in the Quick start?

Steps to reproduce

Create a Field updater, but not sure how to do the final step of copying content from Source to Target field.

Proposed resolution

1. Add a fifth and final step in the Quick start, using the Drush command
2. Add a sentence below that expert users can use an update hook

Quick start

1. Add a new field updater at /admin/config/field-updater
2. Select: Entity type, Bundle, and Target field
3. Select: Source field (optional) if you want to copy from an entity_reference_revisions field type (ie; paragraphs).
4. Save the form and add mappings at /admin/config/field-updater/{id}/mappings
5. Copy content (replace "ID") from Source to Target with drush field-updater:update ID

Expert users can also use an update hook, see next section.

Remaining tasks

User interface changes

API changes

Data model changes