Update README.md

README.md

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 [![codecov](https://codecov.io/gh/KoslickiLab/YACHT/graph/badge.svg?token=AZD6LBFR5P)](https://codecov.io/gh/KoslickiLab/YACHT)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=KoslickiLab_YACHT&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=KoslickiLab_YACHT)
 [![CodeQL](https://github.com/MichaelCurrin/badge-generator/workflows/CodeQL/badge.svg)](https://github.com/KoslickiLab/YACHT/actions?query=workflow%3ACodeQL "Code quality workflow status")
-[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/licenses/MIT)
+[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://github.com/KoslickiLab/YACHT/blob/main/LICENSE.txt)
 
 YACHT is a mathematically rigorous hypothesis test for the presence or absence of organisms in a metagenomic sample, based on average nucleotide identity (ANI).