8. Enable Image Uploads in Posts

[marcothephoenix65]

User Story: As a user, I want to be able to upload images with my posts, so that I can provide clearer contexts for my questions.

Backlog:
Estimated hours/effort for each task: 2 hours
Estimated size/complexity of each task (T shirt): M
Dependencies among tasks (if any): Existing posts
Initial assignments for team members: Mridula
Milestones to indicate which sprint the issue should be completed in (Sprint 1, Sprint 2, Stretch): Stretch
Acceptance criteria that describe how you know this task is done - think about how you will test this feature: Upload pictures when making a post, and ensure it's visible to all users.