[DOCS] Victron instruction section

Author: DigiH

docs/img/Victron01.png

@@ -1,3 +1,4 @@
+<!-- vale Google.Passive = NO -->
 # Use
 
 ## Launching the gateway
@@ -327,6 +328,15 @@ TheengsGateway --bindkeys 00:11:22:33:44:55:66 0dc540f3025b474b9ef1085e051b1add
 
 Theengs Gateway then uses the bindkey `0dc540f3025b474b9ef1085e051b1add` to decrypt all advertisements from device `00:11:22:33:44:55:66` and bindkey `6385424e1b0341109942ad2a6bb42e58` for all advertisements from device `AA:BB:CC:DD:EE:FF`.
 
+## Victron Energy devices prerequisite and bindkey retrieval
+To allow for decryption and decoding of BLE advertisement broadcasts, in the Victron Energy app, Bluetooth needs to be enabled as well as the Instant Readout option for each device.
+
+![Victron Settings](../img/Victron01.png)
+
+Selecting SHOW for the Encryption Data opens a view with the Bluetooth MAC address and bindkey (Encryption Key) for adding to Theengs Gateway as described in the section above.
+
+![Victron Bindkey](../img/Victron02.png)
+
 ## Resolving random private addresses
 If you want to resolve random private MAC addresses into a device's identity MAC address, you need to add an Identity Resolving Key (IRK) for each identity address with the `--identities` argument. For example: