Add MISP question in CTI section

[Dysnome]

Hi,

That would be great to add a question like "what is MISP" in the CTI section, since MISP is widely used in EU and accross all FIRST / Trusted Introducer members.

Some links:

• https://www.misp-project.org/
• https://github.com/MISP/MISP
• https://www.circl.lu/services/misp-malware-information-sharing-platform/

Cheers,
Dysnome