Update links to PyTorch AOT examples in SHARK-Turbine. (#15683)

Some files were moved in that repo. This updates the links on
https://iree.dev/guides/ml-frameworks/pytorch/

Preview:

![image](https://github.com/openxla/iree/assets/4010439/3cdb8d1e-e67a-4d53-8d88-7d8c93b5d6e3)

(I noticed thanks to
https://github.com/nod-ai/SHARK-Turbine/issues/207#issuecomment-1828506427)
diff --git a/docs/website/docs/guides/ml-frameworks/pytorch.md b/docs/website/docs/guides/ml-frameworks/pytorch.md
index d639e56..f675b2a 100644
--- a/docs/website/docs/guides/ml-frameworks/pytorch.md
+++ b/docs/website/docs/guides/ml-frameworks/pytorch.md
@@ -401,9 +401,9 @@
 | -- | -- |
 Advanced AOT export notebook | [![Open in Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/openxla/iree/blob/main/samples/colab/pytorch_aot_advanced.ipynb)
 PyTorch dynamic shapes notebook | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/openxla/iree/blob/main/samples/dynamic_shapes/pytorch_dynamic_shapes.ipynb)
-Unit tests | [`tests/aot/`](https://github.com/nod-ai/SHARK-Turbine/tree/main/tests/aot)
+AOT unit tests | [`tests/aot/`](https://github.com/nod-ai/SHARK-Turbine/tree/main/tests/aot)
 Dynamic MLP export | [`examples/aot_mlp/mlp_export_dynamic.py`](https://github.com/nod-ai/SHARK-Turbine/blob/main/examples/aot_mlp/mlp_export_dynamic.py)
-llama2 inference example | [`examples/llama2_inference/stateless_llama.py`](https://github.com/nod-ai/SHARK-Turbine/blob/main/examples/llama2_inference/stateless_llama.py)
+stateless llama2 | [`python/turbine_models/custom_models/stateless_llama.py`](https://github.com/nod-ai/SHARK-Turbine/blob/main/python/turbine_models/custom_models/stateless_llama.py)
 
 ## Alternate workflows