Fix docker badge (#1700)

README.md

@@ -10,7 +10,7 @@
 ![Master Build Status](https://img.shields.io/circleci/build/github/ConsenSys/mythril.svg?token=97124ecfaee54366859cae98b5dafc0714325f8b)
 [![Sonarcloud - Maintainability](https://sonarcloud.io/api/project_badges/measure?project=mythril&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=mythril)
 [![Pypi Installs](https://pepy.tech/badge/mythril)](https://pepy.tech/project/mythril)
-[![DockerHub Pulls](https://img.shields.io/docker/pulls/mythril/myth.svg?label=DockerHub Pulls)](https://cloud.docker.com/u/mythril/repository/docker/mythril/myth)
+[![DockerHub Pulls](https://img.shields.io/docker/pulls/mythril/myth.svg)](https://cloud.docker.com/u/mythril/repository/docker/mythril/myth)
 
 Mythril is a security analysis tool for EVM bytecode. It detects security vulnerabilities in smart contracts built for Ethereum, Hedera, Quorum, Vechain, Roostock, Tron and other EVM-compatible blockchains. It uses symbolic execution, SMT solving and taint analysis to detect a variety of security vulnerabilities. It's also used (in combination with other tools and techniques) in the [MythX](https://mythx.io) security analysis platform.