updated readme.md

Author: tetrismegistus

README.md

@@ -1,2 +1,18 @@
 # etym
 Query etymologies from www.etymonline.com from the commandline
+
+![example screenshot](https://github.com/tetrismegistus/etym/blob/master/screenshot.png "Example Screenshot")
+
+## Requirements
+
+* beautifulsoup4 
+
+## Installation
+
+You can just clone and run with python:
+
+```
+$ git clone https://github.com/tetrismegistus/etym
+$ cd etym
+$ python3 etym.py
+```