apps-engine README: broken case-studies link in "Share your story" section

[successbyte]

Description:

The "Share your story" section in packages/apps-engine/README.md contains a broken URL:

https://rocket.chat/case-studies/?utm_source=github&utm_medium=readme&utm_campaign=community

This resolves to a 404 page.

Steps to reproduce:

1. Open packages/apps-engine/README.md.
2. Go to the "Share your story" section.
3. Click the current "Blog" link.

Expected behavior:

The link should point to a live page where user/customer stories are available.

Actual behavior:

The link resolves to a 404 page (https://www.rocket.chat/case-studies?...).

Server Setup Information:

• Version of Rocket.Chat Server: N/A (documentation issue)
• License Type: N/A
• Number of Users: N/A
• Operating System: N/A
• Deployment Method: N/A
• Number of Running Instances: N/A
• DB Replicaset Oplog: N/A
• NodeJS Version: N/A
• MongoDB Version: N/A

Client Setup Information

• Desktop App or Browser Version: Any
• Operating System: Any

Additional context

A valid target is:
https://www.rocket.chat/customers?utm_source=github&utm_medium=readme&utm_campaign=community

This better matches the "Share your story" / case-study intent.

Relevant logs:

curl -L -s -o /dev/null -w "%{http_code} %{url_effective}\n" "https://rocket.chat/case-studies/?utm_source=github&utm_medium=readme&utm_campaign=community"
# 404 https://www.rocket.chat/case-studies?utm_source=github&utm_medium=readme&utm_campaign=community

curl -L -s -o /dev/null -w "%{http_code} %{url_effective}\n" "https://www.rocket.chat/customers?utm_source=github&utm_medium=readme&utm_campaign=community"
# 200 https://www.rocket.chat/customers?utm_source=github&utm_medium=readme&utm_campaign=community

[successbyte]

I will raise the PR soon

[KevLehman]

We're gonna forward this internally, thx