Add file to Playbook/ Business

[nhuocnam]

Add 5 files:

1. Business playbook outline
2. Collaboration guideline
3. DF Workflow
4. General questions for service feedback
5. How to work with Clients - Account View

What's this PR do?

• [x] Add new routes for user
• [x] Add instruction for using docker-compose

What are the relevant Git tickets?

// Put in link to Git Issue

Screenshots (if appropriate)

// Use Licecap to share a screencast gif.

Any background context you want to provide? (if appropriate)

• Is there a blog post?
• Does the knowledge base need an update?
• Does this add new dependencies which need to be added to?

[tieubao]

@huynguyenh please double check if it still has any misleading information