MICROPY_PY_COLLECTIONS_ORDEREDDICT is set individually for every port. We should centralize it's use to py/circuitpy* settings. MICROPY_CPYTHON_COMPAT is an example of a setting that has already been centralized.

../../ports/unix/mpconfigport.h
102:#define MICROPY_PY_COLLECTIONS_ORDEREDDICT (1)

../../ports/nrf/mpconfigport.h
63:#define MICROPY_PY_COLLECTIONS_ORDEREDDICT       (1

With the recent release of Phoenix 1.5 🎉 https://elixirforum.com/t/phoenix-v1-5-0-released/30693
Now is a great time to go through this example/tutorial with a fresh pair of eyes and completely update it (including) links to code snapshots. We can also extend it to include auth_plug #25 🔐 and presence #32 🚀.

• Checkout master
• Create new branch e.g: `update-t

Github-pages ?
codepen.io
codesandbox.io

👽 What is required?

The algorithm is here : check-binary-tree-subtree-another-binary-tree

• Follow the ESLint rules strictly
• Follow the filename and folder structure strictly
• Since the Contribution Guide is not ready yet, go