typos in CH2
import pymc as mc -> pm in chapter 3 + typos
typos chapter 4
Delete superfluous row in table

Superfluous row in income by programming language table
Merge pull request #152 from williamscott/here

Delete superfluous row in table
Typo correction

Replace "more clear be" with "more clear by"
Typo and phrasing change

1. Remove full stop between $X$ and :
2. Replace "computational-intensive" with "computationally-intensive"
Add acronym definition and syntax correction

1. Add (MCMC) after first mention of Markov Chain Monte Carlo
2. Correct $\\lambda$s to $\lambda$s.
Merge pull request #153 from williamscott/master

Typos and phrasing changes
fix recent typos causing invalid JSON

recent commit (dfc565c1561bb05b71a316d2073efeb7c6f50e66) edited Chapter 1,
introducing typos and making it invalid JSON. This fixes those typos.
Merge pull request #154 from minrk/lambdas

fix recent typos causing invalid JSON
Update ClusteringWithGaussians.py

A typo has been corrected
Merge pull request #156 from ugurthemaster/master

Update ClusteringWithGaussians.py
chapter 6 mc -> pm
mergin cebe's work
updating readme
Update separation_plot.py

A typo has been corrected.
Merge pull request #157 from ugurthemaster/master

Update separation_plot.py
Fix typo - missing apostrophe in introduction
Chapter 1 - make Poisson code runnable again