add todo

Readme.md

@@ -78,6 +78,10 @@ apply_liger_kernel_to_llama()
 model = transformers.AutoModelForCausalLM.from_pretrained("<some llama model>")
 ```
 
+[TODO] huggingface trainer
+[TODO] lightning trainer
+
+
 ### 2. 🧩 Compose Your Own Model
 
 ```python
@@ -97,6 +101,9 @@ loss = loss_fn(model.weight, input, target)
 loss.backward()
 ```
 
+[TODO] multi-head llama3 model
+[TODO] large vocab model
+
 ## ⚙️ Note on ML Compiler
 
 ### 1. ⚡ Torch Compile