Clarified usage

README.md

 
   [1]: (http://perldoc.perl.org/Test/More.html)
 
-Suggested use is to sit on the other monitor, run all *.t* files around
+Suggested use is to have it sit on the other monitor, run all *.t* files around
 and around and be annoying about the fact that they fail.  Then the rule
 of thumb goes without saying: "no green, no commit".