Update README.md

README.md

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 # M2M - metage2metabo
-Metage2metabo is a Python3 tool to perform graph-based metabolic analysis starting from annotated genomes (**reference genomes or metagenome-assembled genomes**). It uses *Pathway Tools* in a automatic and parallel way to **reconstruct metabolic networks** for a large number of genomes. The obtained metabolic networks are then **analyzed individually and collectively** in order to get the **added value of metabolic cooperation in microbiota over individual metabolism** and to **identify and screen interesting organisms** among all. 
+Metage2metabo is a Python3 (Python >= 3.6) tool to perform graph-based metabolic analysis starting from annotated genomes (**reference genomes or metagenome-assembled genomes**). It uses *Pathway Tools* in a automatic and parallel way to **reconstruct metabolic networks** for a large number of genomes. The obtained metabolic networks are then **analyzed individually and collectively** in order to get the **added value of metabolic cooperation in microbiota over individual metabolism** and to **identify and screen interesting organisms** among all. 
 
 m2m can be used as a whole workflow ( ``` m2m workflow ``` ) or steps can be performed individually ( ``` m2m recon ``` , ``` m2m iscope ``` , ``` m2m cscope ```, ``` m2m addedvalue ```, ``` m2m mincom ```, ``` m2m seeds ```).