API: Run

1. Create the environment
2. Run the API within the VM - python3 app.py
3. Access the API through a web brower using:

• http://localhost:5000/topics
• http://localhost:5000/topics/:id/subtopics - requires a valid topic id to be inserted instead of :id (you can get this from the topics URL)
• http://localhost:5000/topics/:id/subtopics/:id/resources - requires a valid topic id to be inserted instead of the first :id (you can get this from the topics URL) and a valid subtopic id to be inserted instead of the second :id (you can get this from the subtopics URL)