Code improvements

examples/start_example.py

@@ -0,0 +1,12 @@
+from getpass import getpass
+from python_aternos import Client
+
+user = input('Username: ')
+pswd = getpass('Password: ')
+aternos = Client.from_credentials(user, pswd)
+
+srvs = aternos.servers
+print(srvs)
+
+s = srvs[0]
+s.start()