fix the version on the snakemake badge

Author: TBradley27

README.md

@@ -1,5 +1,5 @@
 [![GitHub release](https://img.shields.io/github/release/TBradley27/FilTar.svg)](https://GitHub.com/TBradley27/FilTar/releases/)
-[![Snakemake](https://img.shields.io/badge/snakemake-≥5.4.0-brightgreen.svg?style=flat)](https://snakemake.readthedocs.io)
+[![Snakemake](https://img.shields.io/badge/snakemake-≥5.24.0-brightgreen.svg?style=flat)](https://snakemake.readthedocs.io)
 
 # FilTar