Write guides for Fonoster's documentation

[psanders]

Summary

Write guides covering all possible use-cases in Fonoster.

Intended Outcome

All guides are tested and deployed at learn.fonoster.com

How will it work?

NA

Overview:

NA

List of guides:

• [ ] Playing a sound
• [ ] Using Google TTS
• [ ] IVR example
• [ ] Accepting Calls from the PSTN
• [ ] Installing and Configuring the CTL
• [ ] Getting DTMF input using Gather
• [ ] Getting DTMF input using SGather (Streams)
• [ ] Connecting Fonoster to Dialogflow
• [ ] Making a Call with the SDK
• [ ] Recording a Call
• [ ] Forwarding a Call

Requirements

• [ ] All examples live in a single repository (fonoster/examples)
• [ ] All guides are five minutes or less
• [ ] All examples can be deployed using GitPod/CodeSpace