Update README.md

README.md

@@ -4,6 +4,7 @@ pyFDA
 
 [![PyPI version](https://badge.fury.io/py/pyfda.svg)](https://badge.fury.io/py/pyfda)
 [![Join the chat at https://gitter.im/chipmuenk/pyFDA](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/chipmuenk/pyFDA?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](./LICENSE)
 
 pyFDA is a GUI based tool in Python / Qt for analysing and designing discrete time filters. The capability for generating Verilog and VHDL code for the designed and quantized filters will be added in the next release.