Update leave-request.md

[minhcloud]

What's this PR do?

• Add new routes for user
• 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?

[monotykamary]

LGTM