Update README.md

README.md

@@ -3,5 +3,8 @@ A repository for various scripts I'll be working on based on the Hack This tutor
 
 The idea is to use this series to quickly familiarise myself with Git and Github whilst also doing some cool things with Python.
 
-<i>A note on the extractor.py script</i>:
-If you feel like testing out the script, add your own picture (titled 'image.jpg') to the cloned directory and then run it accordingly. (Obviously adding my own picture would defeat the purpose!)
+<h2>What the scripts do</h2>
+<h3>extractor.py</h3>
+This is a script that extracts <a href="https://en.wikipedia.org/wiki/Exif">Exif</a> data from a jpg image file. This includes things like the make and model of the device that took the picture, the date when it was taken, as well as more private information like the location where it was taken, etc.
+
+If you feel like testing out the script, add your own picture (titled 'image.jpg') to a clone of the directory and then run it accordingly.