Update broken links in index.rst

Author: nirajkamal

index.rst

@@ -806,21 +806,21 @@ Welcome to PyTorch Tutorials
    :header: Using the ExecuTorch SDK to Profile a Model
    :card_description: Explore how to use the ExecuTorch SDK to profile, debug, and visualize ExecuTorch models
    :image: _static/img/ExecuTorch-Logo-cropped.svg
-   :link: https://pytorch.org/executorch/stable/tutorials/sdk-integration-tutorial.html
+   :link: https://docs.pytorch.org/executorch/main/tutorials/devtools-integration-tutorial.html
    :tags: Edge
 
 .. customcarditem::
    :header: Building an ExecuTorch iOS Demo App
    :card_description: Explore how to set up the ExecuTorch iOS Demo App, which uses the MobileNet v3 model to process live camera images leveraging three different backends: XNNPACK, Core ML, and Metal Performance Shaders (MPS).
    :image: _static/img/ExecuTorch-Logo-cropped.svg
-   :link: https://pytorch.org/executorch/stable/demo-apps-ios.html
+   :link: https://github.com/pytorch-labs/executorch-examples/tree/main/mv3/apple/executorchdemo
    :tags: Edge
 
 .. customcarditem::
    :header: Building an ExecuTorch Android Demo App
    :card_description: Learn how to set up the ExecuTorch Android Demo App for image segmentation tasks using the DeepLab v3 model and XNNPACK FP32 backend.
    :image: _static/img/ExecuTorch-Logo-cropped.svg
-   :link: https://pytorch.org/executorch/stable/demo-apps-android.html
+   :link: https://github.com/pytorch-labs/executorch-examples/tree/main/dl3/android/DeepLabV3Demo#executorch-android-demo-app
    :tags: Edge
 
 .. customcarditem::
@@ -1123,9 +1123,9 @@ Additional Resources
 
    Exporting to ExecuTorch Tutorial <https://pytorch.org/executorch/stable/tutorials/export-to-executorch-tutorial.html>
    Running an ExecuTorch Model in C++ Tutorial < https://pytorch.org/executorch/stable/running-a-model-cpp-tutorial.html>
-   Using the ExecuTorch SDK to Profile a Model <https://pytorch.org/executorch/stable/tutorials/sdk-integration-tutorial.html>
-   Building an ExecuTorch iOS Demo App <https://pytorch.org/executorch/stable/demo-apps-ios.html>
-   Building an ExecuTorch Android Demo App <https://pytorch.org/executorch/stable/demo-apps-android.html>
+   Using the ExecuTorch SDK to Profile a Model <https://docs.pytorch.org/executorch/main/tutorials/devtools-integration-tutorial.html>
+   Building an ExecuTorch iOS Demo App <https://github.com/pytorch-labs/executorch-examples/tree/main/mv3/apple/executorchdemo>
+   Building an ExecuTorch Android Demo App <https://github.com/pytorch-labs/executorch-examples/tree/main/dl3/android/DeepLabV3Demo#executorch-android-demo-app>
    Lowering a Model as a Delegate <https://pytorch.org/executorch/stable/examples-end-to-end-to-lower-model-to-delegate.html>
 
 .. toctree::