doc: "licence" is French, English would be "license".

Author: RMerl

README.proprietary

@@ -1,9 +1,9 @@
 This project contains proprietary components from ASUSTeK, Broadcom, 
 Trend Micro and Tuxera (and possibly others).
 
-These components are only licenced for use on original
+These components are only licensed for use on original
 ASUSTeK devices.  Any use of these components on devices from other
 manufacturers is strictly forbidden, and might be illegal in your
 country according to your local laws.  The developers of the
 Asuswrt-Nerlin project will take no responsability for third party
-use of these licenced components on unlicenced hardware.
+use of these licensed components on unlicensed hardware.