Documentation: tiny typo fix in usb/gadget_multi.txt

Signed-off-by: NMichal Nazarewicz <mina86@mina86.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Documentation/usb/gadget_multi.txt

@@ -36,7 +36,7 @@ configuration with CDC ECM which should work better under Linux.
 
 ** Windows host drivers
 
-For the gadget two work under Windows two conditions have to be met:
+For the gadget to work under Windows two conditions have to be met:
 
 *** Detecting as composite gadget