Update README so Spatie Permission will publish migrations

[kde99]

WHY

Doing the normal "php artisan vendor:publish --provider="Spatie\Permission\PermissionServiceProvider" --tag="migrations"" doesn't work as it's not called migrations in code but "permission-migrations".

BEFORE - What was wrong? What was happening before this PR?

Doing the installation process you won't get the migration for the permission tables.

AFTER - What is happening after this PR?

Using the right command you do get the migration and the config file.

HOW

How did you achieve that, in technical terms?

Change the migration and config tag to prefix with "permissions-"

Is it a breaking change or non-breaking change?

Breaks nothing.

How can we test the before & after?

Try to install then you'll see it doesn't publish the migration so the package won't work. Use the correct command then migrate now it does.

[welcome[bot]]

BOOM! Your first PR with us, thank you so much! Someone will take a look at it shortly.

Please keep in mind that:

• if this constitutes a breaking change, it might take quite a while for this to get merged; we try to emulate the Laravel release cycle as much as possible, so developers can upgrade both software once; this means a new big release every ~6 months;
• even if it's a non-breaking change, it might take a few days/weeks for the PR to get merged; unless it's a no-brainer, we like to have some community feedback on new features, before we merge them; this leads to higher-quality code, in the end; we learnt this the hard way :-)
• not all PRs get merged; sometimes we just have to hold out new features, to keep the packages lean; sometimes we don't include features that only apply to niche use cases;
• we're not perfect; if you think we're wrong, call us out on it; but in a kind way :-) we all make mistakes, best we learn from them and build better software together;

Thank you!

-- Justin Case The Backpack Robot

[welcome[bot]]

WHOOP-WHOOP! Congrats, your first PR on this repo has officialy been merged.

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[pxpm]

Thank you @kde99 🙏