Update README.md

README.md

@@ -315,6 +315,11 @@ Install vllm
 VLLM_USE_PRECOMPILED=1 pip install --editable .
 ```
 
+To use fbgemm kernels:
+```Shell
+pip install fbgemm-gpu-genai
+```
+
 Run the benchmarks under `vllm` root folder:
 
 ## benchmark_latency