add banner in readme

Author: bhavsarpratik

README.md

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 # End2End Serverless Transformers On AWS Lambda for NLP 🚀
 
+<figure>
+<img src="https://github.com/bhavsarpratik/serverless-transformers-on-aws-lambda/blob/master/.github/banner.jpg?raw=true" width="75%" height="75%" alt="">
+<figcaption>You need no servers</figcaption>
+</figure>
+
 ## Deploy transformers with ease 💆‍♂️
 
 Go through this [deck](https://bit.ly/serverless-transformers) for full info