modified: README.md

README.md

 # Quick start
 ## System requirements:
-Linux/Unix
-Python (>= 3.7)
+
+- Linux/Unix
+- Python (>= 3.7)
+
 ## Install Scanpy through conda:
 The Miniconda3 package management system can be used to harmonize all of the software packages. We can install Scanpy using the following commands to install Miniconda3:
 ```