Fix a typo

Author: wchen-r7

spec/lib/msf/core/exploit/browser_autopwnv2_spec.rb

@@ -11,7 +11,7 @@
 
 
   def mock_note_destroy
-    # The destory method doesn't pass the note as an argument startlike framework.jobs_stop_job.
+    # The destroy method doesn't pass the note as an argument startlike framework.jobs_stop_job.
     # So here's I'm just gonna clear them all, and that sort of mimics #destroy.
     framework = double('Msf::Framework', datastore: {})