[docs] Convert weights (#345)

* Create convert-weights.md

* Update _toctree.yml

* convert space option only

docs/source/_toctree.yml

@@ -7,6 +7,8 @@
     title: Tensor Sharing in Pytorch
   - local: metadata_parsing
     title: Metadata Parsing
+  - local: convert-weights
+    title: Convert weights to safetensors
   title: Getting started
 - sections: 
   - local: api/torch

docs/source/convert-weights.md

@@ -0,0 +1,13 @@
+# Convert weights to safetensors
+
+PyTorch model weights are commonly saved and stored as `.bin` files with Python's [`pickle`](https://docs.python.org/3/library/pickle.html) utility. To save and store your model weights in the more secure `safetensor` format, we recommend converting your weights to `.safetensors`.
+
+The easiest way to convert your model weights is to use the [Convert Space](https://huggingface.co/spaces/diffusers/convert), given your model weights are already stored on the Hub. The Convert Space downloads the pickled weights, converts them, and opens a Pull Request to upload the newly converted `.safetensors` file to your repository.
+
+<Tip warning={true}>
+
+For larger models, the Space may be a bit slower because its resources are tied up in converting other models. You can also try running the [convert.py](https://github.com/huggingface/safetensors/blob/main/bindings/python/convert.py) script (this is what the Space is running) locally to convert your weights.
+
+Feel free to ping [@Narsil](https://huggingface.co/Narsil) for any issues with the Space.
+
+</Tip>