Created Stopping (markdown)

Stopping.md

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+You can stop the framework at any point by calling the `halt` method:
+
+    Flight::halt();
+
+You can also specify an optional HTTP status code and message:
+
+    Flight::halt(200, 'Be right back...');
+
+Calling `halt` will discard any response content up to that point.
+If you want to stop the framework and output the current response, use the `stop` method:
+
+    Flight::stop();