[functorch] colab links on functorch 0.2.0 website should be linked to a permalinked version of the colabs
Labels: module: docs, triaged, module: functorch

### 🐛 Describe the bug

Visit the AOT Autograd tutorial at:  https://pytorch.org/functorch/stable/notebooks/aot_autograd_optimizations.html
Click the colab icon so you can run the tutorial...it's linking to a colab dir that no longer exists in the repo, so you'll
receive:
~~~
Notebook not found
There was an error loading this notebook. Ensure that the file is accessible and try again.
Ensure that you have permission to view this notebook in GitHub and authorize Colaboratory to use the GitHub API.

https://github.com/pytorch/functorch/blob/main/notebooks/colab/aot_autograd_optimizations.ipynb
Fetch for https://api.github.com/repos/pytorch/functorch/contents/notebooks/colab?per_page=100&ref=main failed: {
  "message": "Not Found",
  "documentation_url": "https://docs.github.com/rest/reference/repos#get-repository-content"
}

CustomError: Fetch for https://api.github.com/repos/pytorch/functorch/contents/notebooks/colab?per_page=100&ref=main failed: {
  "message": "Not Found",
  "documentation_url": "https://docs.github.com/rest/reference/repos#get-repository-content"
}

    at new mK (https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20221006-060055-RC01_479328028:2421:77)
    at wa.program_ (https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20221006-060055-RC01_479328028:2405:427)
    at ya (https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20221006-060055-RC01_479328028:20:336)
    at wa.next_ (https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20221006-060055-RC01_479328028:18:479)
    at za.next (https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20221006-060055-RC01_479328028:21:206)
    at b (https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20221006-060055-RC01_479328028:21:468)
~~~

The notebook can be loaded into colab by going to the jupyter notebook in github, and then clicking the colab button there..  (albeit with an odd run in colab icon still showing even in colab) but a typical user will not want to go figure out the correct steps and path to run:
https://github.com/pytorch/pytorch/blob/master/functorch/notebooks/aot_autograd_optimizations.ipynb

### Versions

Collecting environment information...
PyTorch version: 1.14.0.dev20221009+cu116
Is debug build: False
CUDA used to build PyTorch: 11.6
ROCM used to build PyTorch: N/A

OS: Ubuntu 18.04.6 LTS (x86_64)
GCC version: (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
Clang version: 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
CMake version: version 3.22.6
Libc version: glibc-2.26

Python version: 3.7.14 (default, Sep  8 2022, 00:06:44)  [GCC 7.5.0] (64-bit runtime)
Python platform: Linux-5.10.133+-x86_64-with-Ubuntu-18.04-bionic
Is CUDA available: True
CUDA runtime version: 11.2.152
GPU models and configuration: GPU 0: Tesla T4
Nvidia driver version: 460.32.03
cuDNN version: Probably one of the following:
/usr/lib/x86_64-linux-gnu/libcudnn.so.8.1.1
/usr/lib/x86_64-linux-gnu/libcudnn_adv_infer.so.8.1.1
/usr/lib/x86_64-linux-gnu/libcudnn_adv_train.so.8.1.1
/usr/lib/x86_64-linux-gnu/libcudnn_cnn_infer.so.8.1.1
/usr/lib/x86_64-linux-gnu/libcudnn_cnn_train.so.8.1.1
/usr/lib/x86_64-linux-gnu/libcudnn_ops_infer.so.8.1.1
/usr/lib/x86_64-linux-gnu/libcudnn_ops_train.so.8.1.1
HIP runtime version: N/A
MIOpen runtime version: N/A
Is XNNPACK available: True

Versions of relevant libraries:
[pip3] numpy==1.21.6
[pip3] torch==1.14.0.dev20221009+cu116
[pip3] torchaudio==0.12.1+cu113
[pip3] torchsummary==1.5.1
[pip3] torchvision==0.15.0.dev20221009+cu116


cc @svekars @holly1238 @zou3519 @Chillee @samdow @soumith