Created LEARNING.md and TESTS.md. - #293

pip is already installed if you're using Python 2 >=2.7.9 or Python 3 >=3.4 ... https://pip.pypa.io/en/stable/installing/

So it's not totally true to say it only comes with Python3. I wouldn't mention it, because almost all should have it bundled with their python.

... install pytest though pip ...

small typo -> through or with

This because in the latter case pytest will just return a positive result, only specifying that it ran zero tests.

I would rewrite that one a bit. Maybe ... "If you test your implementation (bob.py) instead of the test suite (bob_test.py), it will return a positive result because it contains no test cases. It looks like this:" ... but writing english is not really a skill of mine.

@behrtam I'll fix those things asap, thanks for the corrections. Though it would still be nice to have a native speaker proofread it anyway.

@behrtam Let me know how it looks to you now.

Could you please squash the two commits to a single one and while you do this you can also update your commit msg (imperative mood and no period #more).

@behrtam Better? Thanks for the link, I had no idea about those punctuation and mood rules.