docs(README): add badges

README.md

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 # single_snake_sequencing - sc/snRNAseq Snakemake Workflow
 
+[![MIT License](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
+[![Status: Active](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
+[![CI/CD](https://github.com/IMS-Bio2Core-Facility/single_snake_sequencing/actions/workflows/cicd.yml/badge.svg)](https://github.com/IMS-Bio2Core-Facility/single_snake_sequencing/actions/workflows/cicd.yml)
+[![Codestyle: Black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
+[![Codestyle: snakefmt](https://img.shields.io/badge/code%20style-snakefmt-000000.svg)](https://github.com/snakemake/snakefmt)
+
 A [Snakemake][sm] workflow for standardised sc/snRNAseq analysis.
 
 Every single cell analysis is slightly different.