Update README.md

Author: gregor-RW

README.md

@@ -8,4 +8,11 @@ Running the command will generate a file `config.xml` inside of `var/config/` fo
 create it, otherwise it will append/modify values to the XML structure.
 
 Command:
-`bin/magento config:data:export _scopes_ _paths_`
+`bin/magento config:data:export scopes paths`
+
+Example:
+`bin/magento config:data:export default,stores trans_email/*/email`
+
+Arguments:
+- `scopes`: Scopes for which you want to export values for. CSV values are allowed. Options: all|default|websites|stores
+- `paths`: Path(s) that you want to export. Wildcard support as asterisk for second and third section of the path (*) - partial wildcard is not supported (eg. trans_email/*_general/email)