Add speculators training note

README.md

@@ -10,6 +10,8 @@ private: true
 DSpark speculative-decoding draft model for **meta-models/Muse-Spark-Open-816B-A42B**
 (816B-A42B MoE target, NVFP4). **Built with Muse Spark.**
 
+Trained with [speculators](https://github.com/vllm-project/speculators) from vllm-project.
+
 ## DSpark architecture
 
 - 5-layer decoder-only draft (hidden 8192, 128/16 attention/KV heads, FFN 16384), BF16,