doc(mqtt): fix typo in pv heatelement topic (#13)

MQTT.md

@@ -94,7 +94,7 @@ Using this topics you may override the HMI Controller in AquaMQTT OperationMode
 | Enable or disable heating element | `$root/ctrl/heatingElementEnabled`       |   bool |      |       "`1`" | Allow the DHW heat pump to use the heating element if needed. Sanity: It is not possible to disable the heating element in case emergency mode is enabled.|
 | Enable or disable emergency mode  | `$root/ctrl/emergencyModeEnabled`       |   bool |      |       "`0`" | Forces the DHW heat pump to use only the heating element. Sanity: it is not possible to enable emergency mode if heating element has been disabled. |
 | Set PV Mode Heat Pump Flag                 | `$root/ctrl/flagPVModeHeatPump`       |   bool|      |  "`1`"       | See [README-PV.md](/README-PV.md) additional information. Note: It is possible to define an additional custom mqtt topic for this attribute within `Configuration.h`  |
-| Set PV Mode Heat Element Flag                 | `$root/ctrl/flagPVModeHeatPump`       |   bool|      |   "`1`"      | See [README-PV.md](/README-PV.md) for additional information. Note: It is possible to define an additional custom mqtt topic for this attribute within `Configuration.h`  |
+| Set PV Mode Heat Element Flag                 | `$root/ctrl/flagPVModeHeatElement`       |   bool|      |   "`1`"      | See [README-PV.md](/README-PV.md) for additional information. Note: It is possible to define an additional custom mqtt topic for this attribute within `Configuration.h`  |
 | Reset Overrides                  | `$root/ctrl/reset`       |   Void |      |        | Removes all previous set overrides. |
 
 **Note:** Calling a `ctrl` topic with an empty payload `""` will reset individual override.

README-PV.md

@@ -78,7 +78,7 @@ The flags can be triggered using the [MQTT](./MQTT.md) control topics. The curre
 | Flag PV heat pump      | `$root/stats/flagPVModeHeatPump` | bool | Status of the pv heat pump flag  |
 | Flag PV heat element   | `$root/stats/flagPVModeHeatElement` | bool | Status of the pv heat element flag
 | Set PV Mode Heat Pump Flag                 | `$root/ctrl/flagPVModeHeatPump`       |   bool           | Note: It is possible to define an additional custom mqtt topic for this attribute within `Configuration.h`  |
-| Set PV Mode Heat Element Flag                 | `$root/ctrl/flagPVModeHeatPump`       |   bool           |  Note: It is possible to define an additional custom mqtt topic for this attribute within `Configuration.h`  |
+| Set PV Mode Heat Element Flag                 | `$root/ctrl/flagPVModeHeatElement`       |   bool           |  Note: It is possible to define an additional custom mqtt topic for this attribute within `Configuration.h`  |
    |
 
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