add instruction for force huggingface

docs/commands.md

@@ -1,5 +1,6 @@
 # Commands
 
+- [Config](#Config)
 - [Inference](#inference)
   - [Inference with Open-Sora 1.2](#inference-with-open-sora-12)
   - [Inference with Open-Sora 1.1](#inference-with-open-sora-11)
@@ -12,6 +13,35 @@
   - [Training Hyperparameters](#training-hyperparameters)
 - [Search batch size for buckets](#search-batch-size-for-buckets)
 
+## Config
+Note that currently our model loading for vae and diffusion model supports two types:
+
+* load from local file path
+* load from huggingface
+
+Our config supports loading from huggingface by default.
+If you wish to load from a local path, you need to set `force_huggingface=True`, for instance:
+
+```python
+# for vae
+vae = dict(
+    type="OpenSoraVAE_V1_2",
+    from_pretrained="/root/commonData/OpenSora-VAE-v1.2",
+    micro_frame_size=17,
+    micro_batch_size=4,
+    force_huggingface=True, # NOTE: set here
+)
+# for diffusion model
+model = dict(
+    type="STDiT3-XL/2",
+    from_pretrained="/root/commonData/OpenSora-STDiT-v3",
+    qk_norm=True,
+    enable_flash_attn=True,
+    enable_layernorm_kernel=True,
+    force_huggingface=True, # NOTE: set here
+)
+```
+
 ## Inference
 
 You can modify corresponding config files to change the inference settings. See more details [here](/docs/structure.md#inference-config-demos).