要提交的变更：

	修改：     README.md

README.md

@@ -20,7 +20,7 @@ Install these package under Ubuntu 20.04 LTS:
 sudo apt install python3-numpy python3-scipy python3-matplotlib python3-astropy python3-ccdproc
 sudo python3 -m pip install pytorch deepCR
 ```
-#File list
+# File list
 
 * crmask.py, cosmic ray detection class, it can be either used standalone or imported as a Python module.
 * crmask.ini, configuration file that will be loaded when CRMask class initialized.