Updated Installation on PocketBook devices (markdown)

install/Installation-on-PocketBook-devices.md

@@ -13,4 +13,11 @@ You can associate the file extensions you want to open in KOReader directly from
 
 Choose the formats you want. You can enable all if you wish but **remember** that associating either `svg` or `log` files will expose a lot of internal KOReader files in your home. **Most people will want to avoid that**.
 
+### Other tweaks
+
+It is possible to customize Pocketbook OS in different manners. Some of which might be useful for some KOReader users.
+If you're interested have a look at https://github.com/jjrrw174/PocketBook-Desktop-and-App-Customizations
+
+**Note:** these changes are not supported here, so feel free to ask in the repo linked above.
+