add resize_token_embeddings

[bingwork]

This may not be the best modification, but the previous code couldn't run directly. The following code needs to be added for it to work, otherwise, the following error would occur:

`
Traceback (most recent call last):
File "/workspace/wubing/titan/scripts/leaderboard/lora/merge_loras_peft_example.py", line 13, in
model = PeftModel.from_pretrained(model, "smangrul/tinyllama_lora_norobots", adapter_name="norobots")
File "/workspace/wubing/anaconda3/envs/titan/lib/python3.10/site-packages/peft/peft_model.py", line 581, in from_pretrained
load_result = model.load_adapter(
File "/workspace/wubing/anaconda3/envs/titan/lib/python3.10/site-packages/peft/peft_model.py", line 1239, in load_adapter
load_result = set_peft_model_state_dict(
File "/workspace/wubing/anaconda3/envs/titan/lib/python3.10/site-packages/peft/utils/save_and_load.py", line 451, in set_peft_model_state_dict
load_result = model.load_state_dict(peft_model_state_dict, strict=False)
File "/workspace/wubing/anaconda3/envs/titan/lib/python3.10/site-packages/torch/nn/modules/module.py", line 2584, in load_state_dict
raise RuntimeError(
RuntimeError: Error(s) in loading state_dict for PeftModelForCausalLM:
size mismatch for base_model.model.model.embed_tokens.base_layer.weight: copying a param with shape torch.Size([32005, 2048]) from checkpoint, the shape in current model is torch.Size([32000, 2048]).
size mismatch for base_model.model.model.embed_tokens.lora_embedding_A.norobots: copying a param with shape torch.Size([8, 32005]) from checkpoint, the shape in current model is torch.Size([8, 32000]).
size mismatch for base_model.model.lm_head.base_layer.weight: copying a param with shape torch.Size([32005, 2048]) from checkpoint, the shape in current model is torch.Size([32000, 2048]).
size mismatch for base_model.model.lm_head.lora_B.norobots.weight: copying a param with shape torch.Size([32005, 8]) from checkpoint, the shape in current model is torch.Size([32000, 8]).

`

[BenjaminBossan]

Thank you for this PR. I just want to let you know that we're currently on vacation and will review this next year.

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[BenjaminBossan]

Thanks for fixing the issue with the embedding size in this example. I tried it out and it works.