designs: multihost-phosphor-buttons: wording

Improve clarity in Position property description text.

Tested: Verified documentation builds.
Change-Id: I2d55944b2e7565812fc1ba4f1e32c86553b4fa84
Signed-off-by: Arun R <rarun@ami.com>
diff --git a/designs/multihost-phosphor-buttons.md b/designs/multihost-phosphor-buttons.md
index 48bd850..745628f 100644
--- a/designs/multihost-phosphor-buttons.md
+++ b/designs/multihost-phosphor-buttons.md
@@ -204,8 +204,8 @@
 MaxPosition Value.
 
 This way when power and reset button press events are handled, the Host selector
-Position property is referred and based on the Position respective power events
-are called.
+Position property is referenced and based on the Position respective power
+events are called.
 
 ## serial console MUX interface