IBX-6187: 'Create faceted search' article added

[julitafalcondusza]

Question	Answer
JIRA Ticket	(https://issues.ibexa.co/browse/IBX-6187)
Versions	master
Edition	Experience

'Create faceted search' article added

Checklist

• [ ] Text renders correctly
• [ ] Text has been checked with vale
• [ ] Description metadata is up to date
• [ ] Redirects cover removed/moved pages
• [ ] Code samples are working
• [ ] PHP code samples have been fixed with PHP CS fixer
• [ ] Added link to this PR in relevant JIRA ticket or code PR