[release/0.1] Update clone commands to use the v0.1.0 tag

This commit is on the release/0.1 branch. Any docs here should recommend
using the v0.1.0 tag that we will create to point to the final release
next week.

Modifying only this branch means that the docs on the `main` branch will
default to cloning with the `main` branch, which is the right behavior.

Author: dbort

build/test_ios.sh

@@ -52,7 +52,7 @@ say() {
 say "Cloning the Code"
 
 pushd . > /dev/null
-git clone https://github.com/pytorch/executorch.git "$OUTPUT"
+git clone --branch v0.1.0 https://github.com/pytorch/executorch.git "$OUTPUT"
 cd "$OUTPUT"
 
 say "Updating the Submodules"

docs/source/getting-started-setup.md

@@ -86,7 +86,7 @@ Follow these steps:
 1. Clone the `executorch` repository:
 
    ```bash
-   git clone [email protected]:pytorch/executorch.git
+   git clone --branch v0.1.0 [email protected]:pytorch/executorch.git
    ```
 
 1. Update the submodules:

docs/source/tutorials_source/export-to-executorch-tutorial.py

@@ -45,7 +45,7 @@
 # Install ExecuTorch from source. If cloning is failing on Google Colab, make
 # sure Colab -> Setting -> Github -> Access Private Repo is checked::
 #
-#       !git clone https://{github_username}:{token}@github.com/pytorch/executorch.git
+#       !git clone --branch v0.1.0 https://{github_username}:{token}@github.com/pytorch/executorch.git
 #       !cd executorch && bash ./install_requirements.sh
 
 ######################################################################

docs/source/tutorials_source/sdk-integration-tutorial.py

@@ -42,7 +42,7 @@
 # Install ExecuTorch from source. If cloning is failing on Google Colab, make
 # sure Colab -> Setting -> Github -> Access Private Repo is checked::
 #
-#       !git clone https://{github_username}:{token}@github.com/pytorch/executorch.git
+#       !git clone --branch v0.1.0 https://{github_username}:{token}@github.com/pytorch/executorch.git
 #       !cd executorch && bash ./install_requirements.sh
 
 ######################################################################

docs/website/docs/tutorials/00_setting_up_executorch.md

@@ -14,8 +14,8 @@ allow you to export your PyTorch model to a flatbuffer file using ExecuTorch.
 
 ```bash
 # Do one of these, depending on how your auth is set up
-git clone https://github.com/pytorch/executorch.git
-git clone [email protected]:pytorch/executorch.git
+git clone --branch v0.1.0 https://github.com/pytorch/executorch.git
+git clone --branch v0.1.0 [email protected]:pytorch/executorch.git
 ```
 
 Ensure that git has fetched and updated the submodules. This is necessary