Merge pull request #299 from NordicSemiconductor/doc_legacy_drivers_note

doc: add note about legacy USB drivers

Author: greg-fer

doc/docs/index.md

@@ -16,6 +16,9 @@ You can use the following Nordic Semiconductor devices as the sniffer with the {
 
 When you [select the device](overview.md#select-device), the tool will reprogram the connected board to act as the sniffer.
 
+!!! note "Note"
+    {{legacy_driver_note}}
+
 ## Application source code
 
 The code of the application is open source and [available on GitHub](https://github.com/NordicSemiconductor/pc-nrfconnect-rssi).

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/mkdocs.yml

@@ -54,6 +54,7 @@ plugins:
 extra:
   test: This is a test abbreviation snippet
   app_name: RSSI Viewer app
+  legacy_driver_note: Make sure you have installed the [additional requirements](https://docs.nordicsemi.com/bundle/nrf-connect-desktop/page/download_cfd.html#additional-requirements) for nRF Connect for Desktop. On Windows, SEGGER USB Driver for J-Link is required for correctly detecting the development kits from nRF52 Series, nRF53 Series, and nRF91 Series using [legacy probes](https://kb.segger.com/J-Link_Installer#USB_Driver).
 
 nav:
   - Home: index.md