hwmon/w83793: Add documentation and maintainer

Documentation for the new w83793 hardware monitoring driver, originally
provided by Yuan My from Winbond.

Also add myself as the maintainer of this driver.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index c2eea29..99654b5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3427,6 +3427,12 @@
 L:	lm-sensors@lm-sensors.org
 S:	Maintained
 
+W83793 HARDWARE MONITORING DRIVER
+P:	Rudolf Marek
+M:	r.marek@assembler.cz
+L:	lm-sensors@lm-sensors.org
+S:	Maintained
+
 W83L51xD SD/MMC CARD INTERFACE DRIVER
 P:	Pierre Ossman
 M:	drzeus-wbsd@drzeus.cx