Add 'notes.md'

notes.md

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+# Notes
+## Config IP4V
+
+```
+sudo connmanctl
+Error getting VPN connections: The name net.connman.vpn was not provided by any
+connmanctl> config wifi_38d269f946b4_756e7365722d486f757365_managed_psk --ipv4 manual 10.0.0.100 255.255.255.0 10.0.0.1 --nameservers 8.8.8.8
+```