Changed the Readme to help understand files/contribute

README.md

 MedSafe_Infographics
 ====================
 
-#Visualization of the statistics derived by MedSafe on FDA Recalls
+###Visualization of the statistics derived by MedSafe on FDA Recalls
+
+##### Important Files
+
+The project folder contains two other folders:
+1. Static
+..* As the name suggests, it contains files containing all the relevant js and css.
+2. Backend
+..* Contains php files for crunching data from the excel worksheet.
+
+###### Dependencies
+The js files require Rickshaw, which can be obtained at http://code.shutterstock.com/rickshaw . Download and place the .min.js file under static/js.
+
+
+##### How to Contribute
+Contributions are great. Please feel free to fork the repository and then make pull requests.
+
+##### Contact 
+Feel free to make suggestions by raising issues, or by contacting me at msaxena2@illinois.edu.
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