Clarify the end of lines sent by Keyboard.println

There is no such thing as the "newline" or "carriage return" keys.
Instead, Keyboard.println() hits the Return key, more commonly known as
the Enter key.

Author: edgar-bonet

Language/Functions/USB/Keyboard/keyboardPrintln.adoc

@@ -14,7 +14,7 @@ title: Keyboard.println()
 
 [float]
 === Description
-Sends one or more keystrokes to a connected computer, followed by a newline and carriage return.
+Sends one or more keystrokes to a connected computer, followed by a keystroke on the Enter key.
 
 `Keyboard.println()` must be called after initiating link:../keyboardbegin[Keyboard.begin()].
 [%hardbreaks]
@@ -29,8 +29,8 @@ Sends one or more keystrokes to a connected computer, followed by a newline and
 
 [float]
 === Parameters
-`character`: a char or int to be sent to the computer as a keystroke, followed by newline and carriage return. +
-`characters`: a string to be sent to the computer as keystrokes, followed by a newline and carriage return.
+`character`: a char or int to be sent to the computer as a keystroke, followed by Enter. +
+`characters`: a string to be sent to the computer as keystrokes, followed by Enter.
 
 
 [float]