fix example of 'pick' which uses 'omit'

jamesmanning · jamesmanning · commit 708039ec76f0 · 2014-10-11T11:03:31.000-04:00
diff --git a/README.md b/README.md
@@ -500,7 +500,7 @@ $scope.mod2 = function(elm) {
 }
 ```
 ```html
-<tr ng-repeat="num in [1,2,3,4,5,6] | omit: mod2">
+<tr ng-repeat="num in [1,2,3,4,5,6] | pick: mod2">
   {{ num }},
 </tr>
 <!--result
