"I need more than 300 emails per month" FAQ needs work

[Exairnous]

Description of the issue
The "I need more than 300 emails per month" FAQ is contradictory and needs clarification.

Location of the issue
https://github.com/Hubs-Foundation/hubs-docs/blob/master/docs/faq.md#i-need-more-than-300-emails-per-month

Expected result from remediation
A clear and concise description of how you can get more emails from Scaleway.

Screenshots of the issue
N/A

Hardware the issue was observed on

• Device: Desktop
• OS: GNU/Linux
• Browser: Firefox

Additional context/notes
Part of: #261

[HussainAther]

hi- i've opened PR #264 to clarify this FAQ entry and make the Scaleway quota progression easier to follow.