Copy layout from DO guide

__pycache__/config.cpython-38.pyc

app.py

app/__init__.py

app/__pycache__/__init__.cpython-38.pyc

app/main/__init__.py

app/main/__pycache__/__init__.cpython-38.pyc

app/main/__pycache__/routes.cpython-38.pyc

app/main/routes.py

app/posts/__init__.py

app/posts/__pycache__/__init__.cpython-38.pyc

app/posts/__pycache__/routes.cpython-38.pyc

app/posts/routes.py

app/templates/base.html

app/templates/index.html

app/templates/posts/index.html

config.py

static/core.css