JS - entered promo code for datetimes and added json readme

Author: hobojoe1848

days/01-03-datetimes/README.md

@@ -16,9 +16,9 @@ After watching the videos, use your Python shell to play around with some timest
 
 Head on over to [CodeChalleng.es](https://codechalleng.es) and sign up if you haven't already.
 
-Use the following URL to unlock Bite 7 for free: 
+Use the following URL to unlock Bite 7 for free: [https://codechalleng.es/bites/promo/datetimes](https://codechalleng.es/bites/promo/datetimes)
 
-Work on *Bite 7 - Parsing dates from logs* as your second day of learning datetime.
+Work on *Bite 7 - Parsing dates from logs* for your second day of learning datetime.
 
 
 ## Day N+2: Your Turn!

days/40-42-json-data/README.md

@@ -0,0 +1,41 @@
+# Days 40-42: JSON in Python
+
+JSON (JavaScript Object Notation) data is one of the more daunting things to deal with when you're learning Python, or any language in general.
+
+This lesson will walk you through importing, decoding, understanding and parsing JSON data.
+
+
+## Day N: Understand and download JSON output
+
+Two videos to watch today: *Inspecting JSON schema* and *Pulling and decoding JSON data*.
+
+These videos will demo some basic JSON schema as well a complex data set. After watching, feel free to play around with your own data sets or use the example in the repo code.
+
+
+## Day N+1: Parsing JSON nested dicts
+
+One of the hardest things with JSON is grabbing data that's nested deep within the dict tree of the JSON schema. 
+
+Watch *Parsing JSON nested dicts* to get a first hand look how to do this.
+
+Use the rest of this day to play around with the included JSON data provided in the repo using the methods detailed in the video. Carve up that nested dict!
+
+
+## Day N+2: Your Turn!
+
+Day 3 means it's your turn! Head over to [PyBites Code Challenge 16](https://codechalleng.es/challenges/16/) and query your favourite API.
+
+A great choice is the [OMDb API](http://www.omdbapi.com/) to query your favourite movies.
+
+Either way, use an API that returns JSON formatted data. Come up with an inventive way to present or request the data. Try allowing the user to enter a movie that you use to query the DB and return data for.
+
+Enjoy!
+
+
+### Time to share what you've accomplished!
+
+Be sure to share your last couple of days work on Twitter or Facebook. Use the hashtag **#100DaysOfCode**. 
+
+Here are [some examples](https://twitter.com/search?q=%23100DaysOfCode) to inspire you. Consider including [@talkpython](https://twitter.com/talkpython) and [@pybites](https://twitter.com/pybites) in your tweets.
+
+*See a mistake in these instructions? Please [submit a new issue](https://github.com/talkpython/100daysofcode-with-python-course/issues) or fix it and [submit a PR](https://github.com/talkpython/100daysofcode-with-python-course/pulls).*