diff --git a/README.md b/README.md
index 47acfe3c..b395f445 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,9 @@
 
 A front/rear camera with flash.
 
-This is a camera useable for simple photo taking and video recording. It can switch between front and rear camera, and the flash can be turned on and off. While recording a video, the flash can be used as a flashlight. Does not require any unnecessary permissions needed by many other cameras.
+This is a camera useable for simple photo taking and video recording. It can switch between front and rear camera, and the flash can be turned on and off. While recording a video, the flash can be used as a flashlight. Does not require any unnecessary permissions needed by many other cameras. You can activate the shutter by long pressing the preview for easier selfies.
+
+If you want to launch this app at pressing the hardware camera button, you might have to disable the built in Camera app in Settings -> Apps -> Camera -> Disable.
 
 <a href='https://play.google.com/store/apps/details?id=com.simplemobiletools.camera'><img alt='Get it on Google Play' src='https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png' height=60/></a>
 <a href="https://f-droid.org/app/com.simplemobiletools.camera"><img src="https://f-droid.org/badge/get-it-on.png" alt="Get it on F-Droid" height="60"></a>