Update readBytesUntil.adoc

Author: Arnold-n

Language/Functions/Communication/Serial/readBytesUntil.adoc

@@ -16,7 +16,7 @@ title: Serial.readBytesUntil()
 === Description
 Serial.readBytesUntil() reads characters from the serial buffer into an array. The function terminates (checks being done in this order) if the determined length has been read, if it times out (see link:../settimeout[Serial.setTimeout()]), or if the terminator character is detected, in which case the function returns the characters up to the last character before the supplied terminator. The terminator itself is not returned in the buffer.
 
-`Serial.readBytesUntil()` returns the number of characters read into the buffer. A 0 means that supplied length < = 0, a time out occured, or a termination character was found before any other input.
+`Serial.readBytesUntil()` returns the number of characters read into the buffer. A 0 means that supplied length < = 0, or that a time out occured or a termination character was found before any other input.
 
 `Serial.readBytesUntil()` inherits from the link:../../stream[Stream] utility class.
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