PEP8 fixes for Chapter 3
CH2: Correct Bernoulli failure probability

This was fixed in 3fe9939b38dbfd3547f15080232ae49caf262cec but unrelated
changes in 16c6a7778792088cf15d63836c359133d5cded7f reverted the fix.
Merge pull request #127 from kyleam/bern-prop-failure

CH2: Correct Bernoulli failure probability
Merge pull request #126 from bobjansen/master

PEP8 fixes for Chapter 3
fixing figures
fixing issue #129
Fixed several misspellings of 'occurrence'
Merge pull request #130 from lightcatcher/master

Fixed several misspellings of 'occurrence' in chapter 2
updating readmE
Merge branch 'master' of github.com:CamDavidsonPilon/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers
remving images
Update README.md
Fixing small spelling mistake

$lambda$ to $\lambda$
Merge pull request #131 from Inconditus/patch-1

Fixing small spelling mistake
Small grammar fix
Merge remote-tracking branch 'upstream/master'
Merge pull request #132 from elpres/master

Small grammar fix
Update MorePyMC.ipynb

Probably a type since the code uses `N_B = 750`
Merge pull request #135 from hackaugusto/patch-1

Update MorePyMC.ipynb
Histogram was not visible due to incorrect ylims.