Point to latest version in README.md

Author: tmke8

README.md

@@ -5,12 +5,12 @@ which provides type information for [matplotlib][matplotlib], [numpy][numpy] and
 The [mypy][mypy] type checker can [recognize][mypy-docs] the types in these packages by installing this package:
 
 ```bash
-pip install git+https://github.com/predictive-analytics-lab/[email protected].1
+pip install git+https://github.com/predictive-analytics-lab/[email protected].2
 ```
 
 There is also minor support for Tensorflow and Tensorflow Probability.
 
-## Philosphy
+## Philosophy
 
 The goal is not to recreate the class hierarchy exactly.
 The goal is to have useful checks on our code.