Update install-android.md

Distinguish F-Droid from Side-loading

Author: davidhedlund

docs/guides/install-android.md

@@ -2,18 +2,17 @@
 
 ## Non-Google Play sources
 
-For installations from outside Google Play, you need to follow the [Allowing APK installations blocked by Google Play Protect](#allowing-apk-installations-blocked-by-google-play-protect) guide.
+### Installation via Side-loading
+Side-loading means installing manually downloaded APK files on Android (outside official stores).<br />
+You must follow the [installation notes](#installation-notes) for this process.
 
-### Installation via Website
+#### From RetroArch.com Downloads
 ___
 1. Visit the retroarch.com [Downloads page](https://www.retroarch.com/?page=platforms) and select **Download Stable** or **Download Nightly**.
 2. Open the downloaded APK (via a file manager if your browser does not prompt you when the download is completed).
 3. Select Install.
-> * Android may tell you that `the app doesn’t have permission to install APKs`. Click the available `Settings` button in that prompt.
-> * In the next menu, turn on the toggle allowing the app install APKs.
-> * `Hit the back button` to return to your installation.
 
-#### Other Versions via Buildbot
+##### From Buildbot Archives
 ___
 All [stable](https://buildbot.libretro.com/stable/{{ unit.stable }}/android/) and [nightly](https://buildbot.libretro.com/nightly/android/) bundles are available via BuildBot If you need a specific architecture or build for testing. Builds are named with an architecture suffix: `aarch64` is a 64-bit build, `ra32` is a 32-bit build, and no suffix is a universal build that opts for 64-bit if your system supports it.
 > 32-bit support on Android is slowly being phased out by the industry, but these builds remain available for older devices or specific use cases.
@@ -34,6 +33,12 @@ A more detailed difference between the Play Store versions can be found in [this
 
 # Installation notes
 
+## Side-loading
+
+* Android may tell you that `the app doesn’t have permission to install APKs`. Click the available `Settings` button in that prompt.
+* In the next menu, turn on the toggle allowing the app install APKs.
+* `Hit the back button` to return to your installation.
+
 ## Allowing APK installations blocked by Google Play Protect
 
 To install RetroArch from non-Google Play sources (F-Droid, retroarch.com, etc), ensure Google Play Protect either approves it or disable the service entirely.