PyTorch 버전 호환성 문서 추가, PyTorch for Edge 문서 추가

- PyToch 및 Domain APIs와의 버전 호환성 문서 추가
- PyTorch for Edge 문서 적용 / 기존 Mobile 내용 제거
- 이전 버전의 PyTorch 문서 내 누락된 1.8.2 LTS 내용 추가
- PyTorch 2.x 문서 좌측 바로가기 개선
- PyTorch 시작하기 하위 메뉴 스타일 개선 등

Author: 9bow

_get_started/get-started-locally.md

@@ -44,4 +44,3 @@ redirect_from: "/get-started/"
 <script page-id="get-started-locally" src="{{ site.baseurl }}/assets/menu-tab-selection.js"></script>
 <script src="{{ site.baseurl }}/assets/quick-start-module.js"></script>
 <script src="{{ site.baseurl }}/assets/show-screencast.js"></script>
-<script src="{{ site.baseurl }}/assets/get-started-sidebar.js"></script>

_get_started/mobile.md

@@ -1,21 +1,39 @@
 ---
 layout: get_started
-title: 모바일
-permalink: /get-started/mobile/
+title: PyTorch for Edge
+permalink: /get-started/executorch/
 background-class: get-started-background
 body-class: get-started
-order: 5
+order: 6
 published: true
 ---
 
-## PyTorch 모바일로 시작하기
+## Get Started with PyTorch ExecuTorch
 
-PyTorch 1.3부터, PyTorch는 Python으로 iOS 및 Android 배포에 이르기까지 종단 간 워크플로우(end-to-end workflow)를 지원합니다.
-현재는 초기의, 실험적인 릴리즈로 앞으로 여러 영역에서 만들어나갈 예정입니다.
+PyTorch’s edge specific library is [ExecuTorch](https://github.com/pytorch/executorch/) and is designed to be lightweight, very performant even on devices with constrained hardware such as mobile phones, embedded systems and microcontrollers.
 
-[Android]({{ site.external_urls.org_www }}/mobile/android)에서 시작하기
+ExecuTorch relies heavily on PyTorch core technologies such as [torch.compile](https://pytorch.org/docs/stable/torch.compiler.html) and [torch.export](https://pytorch.org/docs/stable/export.html), and should be very familiar to anyone who has used PyTorch in the past.
+
+### Getting Started
+You can get started by following the [general getting started guide](https://pytorch.org/executorch/stable/getting-started.html#) or jump to the specific steps for your target device.
+
+* [Using ExecuTorch on Android](https://pytorch.org/executorch/stable/using-executorch-android.html)
+* [Using ExecuTorch on iOS](https://pytorch.org/executorch/stable/using-executorch-ios.html)
+* [Using ExecuTorch with C++](https://pytorch.org/executorch/stable/using-executorch-cpp.html)
+
+### Hardware Acceleration
+ExecuTorch provides out of the box hardware acceleration for a growing number of chip manufacturers. See the following resources to learn more about how to leverage them:
+
+* [Backend Overview](https://pytorch.org/executorch/stable/backends-overview.html)
+* [XNNPACK](https://pytorch.org/executorch/stable/backends-xnnpack.html)
+* [Core ML](https://pytorch.org/executorch/stable/backends-coreml.html)
+* [MPS](https://pytorch.org/executorch/stable/backends-mps.html)
+* [Vulkan](https://pytorch.org/executorch/stable/backends-vulkan.html)
+* [ARM Ethos-U](https://pytorch.org/executorch/stable/backends-arm-ethos-u.html)
+* [Qualcomm AI Engine](https://pytorch.org/executorch/stable/backends-qualcomm.html)
+* [MediaTek](https://pytorch.org/executorch/stable/backends-mediatek.html)
+* [Cadence Xtensa](https://pytorch.org/executorch/stable/backends-cadence.html)
 
-[iOS]({{ site.external_urls.org_www }}/mobile/ios)에서 시작하기
 
 <script page-id="mobile" src="{{ site.baseurl }}/assets/menu-tab-selection.js"></script>
 <script src="{{ site.baseurl }}/assets/get-started-sidebar.js"></script>

_get_started/previous-versions.md

@@ -1153,6 +1153,61 @@ pip install torch==1.9.0+cu102 torchvision==0.10.0+cu102 torchaudio==0.9.0 -f ht
 pip install torch==1.9.0+cpu torchvision==0.10.0+cpu torchaudio==0.9.0 -f https://download.pytorch.org/whl/torch_stable.html
 ```
 
+### v1.8.2 with LTS support
+
+#### Conda
+
+##### OSX
+
+macOS is currently not supported for LTS.
+
+##### Linux and Windows
+
+```
+# CUDA 10.2
+# NOTE: PyTorch LTS version 1.8.2 is only supported for Python <= 3.8.
+conda install pytorch torchvision torchaudio cudatoolkit=10.2 -c pytorch-lts
+
+# CUDA 11.1 (Linux)
+# NOTE: 'nvidia' channel is required for cudatoolkit 11.1 <br> <b>NOTE:</b> Pytorch LTS version 1.8.2 is only supported for Python <= 3.8.
+conda install pytorch torchvision torchaudio cudatoolkit=11.1 -c pytorch-lts -c nvidia
+
+# CUDA 11.1 (Windows)
+# 'conda-forge' channel is required for cudatoolkit 11.1 <br> <b>NOTE:</b> Pytorch LTS version 1.8.2 is only supported for Python <= 3.8.
+conda install pytorch torchvision torchaudio cudatoolkit=11.1 -c pytorch-lts -c conda-forge
+
+# CPU Only
+# Pytorch LTS version 1.8.2 is only supported for Python <= 3.8.
+conda install pytorch torchvision torchaudio cpuonly -c pytorch-lts
+
+# ROCM5.x
+
+Not supported in LTS.
+```
+
+#### Wheel
+
+##### OSX
+
+macOS is currently not supported in LTS.
+
+##### Linux and Windows
+
+```
+# CUDA 10.2
+pip3 install torch==1.8.2 torchvision==0.9.2 torchaudio==0.8.2 --extra-index-url https://download.pytorch.org/whl/lts/1.8/cu102
+
+# CUDA 11.1
+pip3 install torch==1.8.2 torchvision==0.9.2 torchaudio==0.8.2 --extra-index-url https://download.pytorch.org/whl/lts/1.8/cu111
+
+# CPU Only
+pip3 install torch==1.8.2 torchvision==0.9.2 torchaudio==0.8.2 --extra-index-url https://download.pytorch.org/whl/lts/1.8/cpu
+
+# ROCM5.x
+
+Not supported in LTS.
+```
+
 ### v1.8.1
 
 #### Conda

_get_started/pytorch.md

@@ -1,6 +1,6 @@
 ---
 layout: get_started
-title: PyTorch 2.0
+title: PyTorch 2.x
 permalink: /get-started/pytorch-2.0/
 featured-img: "assets/images/featured-img-pytorch-2.png"
 background-class: get-started-background
@@ -369,7 +369,7 @@ We are super excited about the direction that we’ve taken for PyTorch 2.0 and
 - [Developer Discussions](https://dev-discuss.pytorch.org)
 
 <script page-id="pytorch" src="{{ site.baseurl }}/assets/menu-tab-selection.js"></script>
-<script src="{{ site.baseurl }}/assets/quick-start-module.js"></script>
+<!-- <script src="{{ site.baseurl }}/assets/quick-start-module.js"></script> -->
 <script src="{{ site.baseurl }}/assets/show-screencast.js"></script>
 
 ## Accelerating Hugging Face and TIMM models with PyTorch 2.0
@@ -664,5 +664,3 @@ Disclaimer: Please do not share your personal information, last name, company wh
 - [TorchInductor](https://www.youtube.com/watch?v=vbtGZL7IrAw)
 - [Dynamic Shapes](https://www.youtube.com/watch?v=vbtGZL7IrAw)
 - [Export Path](https://www.youtube.com/watch?v=vbtGZL7IrAw)
-
-<script src="{{ site.baseurl }}/assets/get-started-sidebar.js"></script>