move note to installing app page

Author: greg-fer

doc/docs/installing.md

@@ -1,3 +1,6 @@
 # Installing the {{app_name}}
 
-For installation instructions, see [Installing nRF Connect for Desktop apps](https://docs.nordicsemi.com/bundle/nrf-connect-desktop/page/installing_apps.html) in the nRF Connect for Desktop documentation.
+For installation instructions, see [Installing nRF Connect for Desktop apps](https://docs.nordicsemi.com/bundle/nrf-connect-desktop/page/installing_apps.html) in the nRF Connect for Desktop documentation.
+
+!!! note "Note"
+    {{legacy_driver_note}}

doc/docs/overview.md

@@ -14,9 +14,6 @@ Before a device is selected, the side panel contains the following buttons:
 
 Drop-down to list the devices attached to the computer. When you connect a [supported device](index.md#supported-devices) and select it in this menu, the {{app_name}} programs the device with the correct sniffer firmware, and then connects to one of the available serial ports. Sniffing starts automatically.
 
-!!! note "Note"
-    {{legacy_driver_note}}
-
 ## After selection
 
 When a device is selected, sniffing in the 2.4 GHz range starts automatically and the side panel options become available.