Fix SSL Cert for kb.frappe.io

Hello,

It looks the https://kb.frappe.io is setup incorrect SSL Certificate. Chrome is stopping to visit the URL. If the content location is no longer available, please redirect to the new content location.

Currently its showing cert of charts.erpnext.com

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NET::ERR_CERT_COMMON_NAME_INVALID
Subject: charts.erpnext.com
Issuer: R3
Expires on: Mar 4, 2021
Current date: Dec 23, 2020
PEM encoded chain:
-----BEGIN CERTIFICATE-----
MIIFKTCCBBGgAwIBAgISA7nJvBZKwk9nWqnDdugQ0I9hMA0GCSqGSIb3    DQEBCwUA
----------------------------------