[IMP] l10n_gt: Add Infile registration form link to documentation

[fvz-odoo]

This PR updates the Guatemala EDI documentation to include a direct link to the official Infile registration form used by Odoo customers to request their account.

Changes included

• Added a new note under the Infile subsection with the registration form link and a short explanation of how Infile will contact the user to complete the onboarding.
• Added a reference to the same form in the Introduction section to give users an additional entry point when starting the setup.

Purpose

This update helps new customers begin their Infile onboarding process more easily by providing the correct registration channel directly in the documentation. It ensures that users know where to submit their information before configuring credentials in Odoo.

No functional changes

Documentation-only update.

[robodoo]

[afma-odoo]

Hi @fvz-odoo! Thank you for this update 😉

I added a few comments and suggestions.
Can you also change the commit & PR name to [IMP] l10n_gt: Add Infile registration form link to documentation? The [TAG] to use is [IMP] when improving an existing page, and _edi should not be used.
Let me know if you have any questions! Thank you!

[fvz-odoo]

Hello @afma-odoo

Thanks for the review! I just did the changes suggested.

Let me know if anything.

Cheers!

Fernando

[afma-odoo]

Hi @fvz-odoo
Thanks for the update! I'll go ahead and approve the PR.
Just let me know when it's not in draft anymore so I can r+ it :)
Thank you!

[afma-odoo]

@robodoo r+