Fix the version number and add more in README

packages/Python/README.md

@@ -3,3 +3,17 @@
 This package is the code library for _Modern Robotics: Mechanics, Planning, 
 and Control_. For more details please see the library introduction pdf file
 or the [website](http://modernrobotics.org/).
+
+To use the package, you can either
+
+* Run `python setup.py build` and `python setup.py install` in the package directory
+
+* Run `pip install modern_robotics` to use pip to install
+
+* Copy `modern_robotics` directory into working directory
+
+To import the package, we recommend using
+
+```
+import modern_robotics as mr
+```

packages/Python/setup.py

@@ -1,8 +1,10 @@
 from setuptools import setup
 
+exec(open('modern_robotics/__version__.py').read())
+
 setup(
     name = "modern_robotics",
-    version = "__version__",
+    version = __version__,
     author = "Huan Weng, Mikhail Todes, Jarvis Schultz, Bill Hunt",
     author_email = "huanweng@u.northwestern.edu",
     description = ("Modern Robotics: Mechanics, Planning, and Control: Code Library"),