Update mythril to mythril classic as docs link

README.md

@@ -6,7 +6,7 @@
 
 [![Discord](https://img.shields.io/discord/481002907366588416.svg)](https://discord.gg/E3YrVtG)
 [![PyPI](https://badge.fury.io/py/mythril.svg)](https://pypi.python.org/pypi/mythril)
-[![Read the Docs](https://readthedocs.org/projects/mythril/badge/?version=master)](https://mythril.readthedocs.io/en/master/)
+[![Read the Docs](https://readthedocs.org/projects/mythril-classic/badge/?version=master)](https://mythril.readthedocs.io/en/master/)
 ![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)
@@ -41,7 +41,7 @@ Instructions for using Mythril are found on the [Wiki](https://github.com/Consen
 For support or general discussions please join the Mythril community on [Discord](https://discord.gg/E3YrVtG).
 
 ## Bulding the Documentation
-Mythril's documentation is contained in the `docs` folder and is published to [Read the Docs](https://mythril.readthedocs.io/en/master/). It is based on Sphinx and can be built using the Makefile contained in the subdirectory:
+Mythril's documentation is contained in the `docs` folder and is published to [Read the Docs](https://mythril-classic.readthedocs.io/en/master/). It is based on Sphinx and can be built using the Makefile contained in the subdirectory:
 
 ```
 cd docs