Update README.md

Author: seveibar

README.md

@@ -5,6 +5,8 @@ Interface for doing NLP tasks. [Check it out here](https://waoai.github.io/react
 - Audio transcription
 - Text Labeling (Entity, Classification)
 
+![screenshot](https://user-images.githubusercontent.com/1910070/76181412-560efc00-6197-11ea-8eba-1f48768f5183.png)
+
 ## Installation
 
 `npm install @material-ui/core chroma-js spelling react-nlp-annotate`