Merge pull request #4 from okrahealth/update-readme

Update README to use pipenv

README.md

@@ -1,3 +1,24 @@
 # Okra API
 
-RESTful API for okra. 
+RESTful API for okra.
+
+## Setup and Installation (for development)
+
+### Step 1: Configure pipenv
+
+-   Follow the instructions in the [pipenv README](https://github.com/pypa/pipenv/blob/master/README.md) to install pipenv on your system
+
+### Step 2: Install dependencies
+
+```shell
+pipenv install
+python setup.py install
+```
+
+### Step 3: Start pipenv shell
+
+```shell
+pipenv shell
+```
+
+This will spawn a new shell subprocess, which can be deactivated by using exit.