0.2.2 - Added that strings can be surrounded by quotes as well;
0.2.2 - Added recommendation for the use of 4 spaces to indent code. Also added reference to PEP8;
0.3.3 - Changed notation on L_infinity norm;
0.3.4 - Fixed equal signs notation;
0.4 - Changed first sentence. Probability is one of the mathematical languages for uncertainty and definitely the most used one in ML, if not the only one. However, there are other theories around for dealing with uncertainty. Yes, it is a bit picky of me to change that but the reason I did is to not enrage any mathematicians that might attend the school =);
0.4 - "Sample space" -> "A sample space";
Exercise 0.10 - Changed variable name from CamelCase to words_with_underline spec, to comply with PEP8.
Small changes on day0 part of the guide: