Fixed spelling errors

Change-Id: I4b668b6246508d3bedda75ca179da1615516bad4
Signed-off-by: Rebecca Shaw <rebecca.shaw@ibm.com>
diff --git a/app/common/directives/app-header.js b/app/common/directives/app-header.js
index 6be458a..1fa25d2 100644
--- a/app/common/directives/app-header.js
+++ b/app/common/directives/app-header.js
@@ -52,7 +52,7 @@
                 // value for updating the data Service state rather
                 // using it to detect the command line state change.
                 // Tried different methods like creating a separate
-                // function, addding ws under $scope etc.. but auto
+                // function, adding ws under $scope etc.. but auto
                 // refresh is not happening.
                 $scope.loadServerStatus();
               }