Adding links for .env.example

Author: bpartridge83

mcp-server/.env.example

@@ -1,19 +1,23 @@
 # description: Your Twilio Account SID
 # format: text
+# link: https://www.twilio.com/console
 # required: true
 ACCOUNT_SID=ACxxx
 
 # description: Your Twilio Auth Token
 # format: text
+# link: https://www.twilio.com/console
 # required: true
 AUTH_TOKEN=abc
 
 # description: Your Twilio API Key
 # format: text
+# link: https://www.twilio.com/console/project/api-keys
 # required: true
 API_KEY=SKxxx
 
 # description: Your Twilio API Secret
 # format: text
+# link: https://www.twilio.com/console/project/api-keys
 # required: true
 API_SECRET=abc