docs(lifecycle-hooks): minor typo.

closes #2045

Author: liquidsnk

public/docs/ts/latest/guide/lifecycle-hooks.jade

@@ -86,7 +86,7 @@ table(width="100%")
     td ngDoCheck
     td
       :marked
-        Detect and act upon changes that Angular can or won't
+        Detect and act upon changes that Angular can't or won't
         detect on its own. Called every change detection run.
   tr(style=top)
     td ngOnDestroy