a bit fixed of comment

Author: nataliakoval

inc/webdriver_capabilities_parser.h

@@ -8,7 +8,7 @@ There are two capabilities which define strategy what view will be current after
 - "windowposition" - HWD will be try start window with desired position, as a string (e.g. - "80, 60")
 - "maximize" - HWD will be try start window with maximum size
 - "reuseUI" - HWD checks this caps, if it is not specified,
-in case of attempt to create second session we get exeception of "one session only",<br/>
+in case of attempt to create second session we get exception of "one session only",<br/>
 otherwise prev session will be terminated without closing windows and new session can reuse those windows
 
 For browserClass customizer can define some generic classes. In example in default