if empty, password is generated

README.md

@@ -17,9 +17,13 @@ bindpwd - from group variables
 file : default account.csv csv file containing user to create:
 
 ```csv
-org,firstname,lastname,email,password
+org,firstname,lastname,email,[password]
 ```
 
+password field optionnal - if empty will be generated automatically - WIP
+
+keep the final comma, though !
+
 Dependencies
 ------------