Update deeplabv3_on_android.rst

Fixed misplaced info tag.

Author: tstatler

beginner_source/deeplabv3_on_android.rst

@@ -5,7 +5,7 @@ Image Segmentation DeepLabV3 on Android
 
 **Reviewed by**: `Jeremiah Chung <https://github.com/jeremiahschung>`_
 
-.. note::
+.. warning::
     PyTorch Mobile is no longer actively supported. Please check out `ExecuTorch <https://pytorch.org/executorch-overview>`_, PyTorch’s all-new on-device inference library. You can also review our `end-to-end workflows <https://github.com/pytorch/executorch/tree/main/examples/portable#readme>`_ and review the `source code for DeepLabV3 <https://github.com/pytorch/executorch/tree/main/examples/models/deeplab_v3>`_.