wiki: Add wikipedia links to IMS quirk description

Also, VoWi-Fi -> VoWiFi while at it.

Change-Id: Ibe3a5246b737d9fdcd5741298b8b7096b9f6c21e

Author: luk1337

pages/quirks/ims.md

@@ -16,5 +16,5 @@ You have been redirected here because LineageOS builds for your device do not su
 
 While it certainly is a standard, there is no standard implementation for it in the Android source code.
 Some vendors have their own implementation, which is not open-source and can therefore not be integrated into LineageOS' code.
-Devices that rely on any of these implementations therefore lack all the features provided by IMS (VoLTE, VoWi-Fi, VoNR, etc.).
+Devices that rely on any of these implementations therefore lack all the features provided by IMS ([VoLTE](https://en.wikipedia.org/wiki/Voice_over_LTE), [VoWiFi](https://en.wikipedia.org/wiki/Wi-Fi_calling), [VoNR](https://en.wikipedia.org/wiki/Voice_over_NR), etc.).
 This might or might not affect you, depending on your provider and region.