add teachify.com template

[linyiru]

Description

We would like to ease the process of adding DNS records required for setting custom domain or subdomain with teachify.com services.

Type of change

Please mark options that are relevant.

• New template
• Bug fix (non-breaking change which fixes an issue in the template)
• New feature (non-breaking change which adds functionality to the template)
• Breaking change (fix or feature that would cause existing template behavior to be not backward compatible)

How Has This Been Tested?

Please mark the following checks done

• Schema validated using JSON Schema template.schema
• Template functionality checked using Online Editor
• Template is checked using template linter
• Template file name follows the pattern <providerId>.<serviceId>.json

Example variable values

prefix: user2025
subdomain: blog

ip: 34.96.87.87

[github-actions]

Linter OK:

Linter result for teachify.com.website-arecord.json
Linter result for teachify.com.website-cname.json

[pawel-kow]

lgtm