Merge pull request #2 from ericmjl/readme-update

updated README

Author: ericmjl

README.md

@@ -1,6 +1,49 @@
 # bayesian-stats-modelling-tutorial
 How to do Bayesian statistical modelling using numpy and PyMC3
 
+# getting started
+
+To get started, first identify whether you 
+
+1. Prefer to use the `conda` package manager (which ships with the Anaconda distribution of Python), or if you 
+2. prefer to use `pipenv`, which is a package authored by Kenneth Reitz for package management with `pip` and `virtualenv`, or if you
+3. Do not want to mess around with dev-ops.
+
+## `conda` users
+
+If this is the first time you're setting up your compute environment, use the `conda` package manager to **install all the necessary packages** from the provided `environment.yml` file.
+
+```bash
+conda env create -f environment.yml
+```
+
+To **activate the environment**, use the `conda activate` command.
+
+```bash
+conda activate bayesian-stats-modelling
+```
+
+**If you get an error activating the environment**, use the older `source activate` command.
+
+```bash
+source activate bayesian-stats-modelling
+```
+
+To **update the environment** based on the `environment.yml` specification file, use the `conda update` command.
+
+```bash
+conda env update -f environment.yml
+```
+
+## `pipenv` users
+
+Instructions are coming.
+
+## don't want to mess with dev-ops
+
+If you don't want to mess around with dev-ops, click the following badge to get a Binder session on which you can compute and write code.
+
+[![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/ericmjl/bayesian-stats-modelling-tutorial/master)
 
 # data credits