Update README.md

Author: Abhinav Verma

README.md

@@ -1 +1,15 @@
-# Maximum-Bandwidth-Path-Graph-Algorithm
+# Maximum-Bandwidth-Path-Graph-Algorithm
+
+## Installation
+
+**Mac OS X**: A version of Python is already installed.  
+**Windows**: You will need to install one of the 2.x versions available at [python.org](http://www.python.org/getit/).
+
+
+## Usage information
+
+1. Download the [ZIP package](https://github.com/abhi-verma/Maximum-Bandwidth-Path-Graph-Algorithm/archive/master.zip) and unzip it.
+2. Run the file: main.py by executing the following command:
+   **python main.py**
+   * Most of the scripts will run by simply typing 'python' followed by the file name of the script, e.g. `python theScript.py`.
+   * If the script is in a different directory from which you are trying to run it, you will need to provide the full path to the script’s file, e.g. 'python /Users/myself/foldername/theScript.py'.