Update Tutorial in app (en)

tutorials/Tutorial-in-app-(en).md

@@ -12,6 +12,13 @@ Resources :
 
 - https://ring.cx/en/about/practical
 
+
+# <a name="1">1 - What should a Ring user know?</a>
+
+- Ring is fundamentally different from other communication tools
+- Ring protects the privacy of its users
+- A Ring account is stored on the device, it must be saved
+
 # How to delete my account?
 
 ## Accounts without Infohash