Update README.md

tax_practical/README.md

@@ -221,6 +221,7 @@ Objectives of the practical:
 
 Required tools:
 - [mOTUs](https://github.com/motu-tool/mOTUs_v2) (install with [conda](https://anaconda.org/bioconda/motus))
+- [metaphlan](https://github.com/biobakery/MetaPhlAn/wiki/MetaPhlAn-3.0) (optional, install with [conda](https://anaconda.org/bioconda/metaphlan))
 
 Required file:
 - filtered fastq files created in the previous practical