add lcmlora instructions

README.md

@@ -117,4 +117,22 @@ python3 -m pip install --pre --upgrade --extra-index-url https://pypi.nvidia.com
       --guidance-scale 0.0 \
       --seed 42
     
+    ```
+  - **SDXL-LCMLORA**
+
+    The first invocation produces plan files in --engine-dir specific to the accelerator being run on and are reused for later invocations. 
+
+    ```
+    python3 demo_txt2img_xl.py \
+      ""Astronaut in a jungle, cold color palette, muted colors, detailed, 8k"" \
+      --version=xl-1.0 \
+      --onnx-dir /workspace/stable-diffusion-xl-1.0-tensorrt/lcmlora \
+      --engine-dir /workspace/stable-diffusion-xl-1.0-tensorrt/lcm/engine-sdxl-lcmlora-nocfg \
+      --scheduler LCM \
+      --lora-path latent-consistency/lcm-lora-sdxl \
+      --lora-scale 1.0 \
+      --denoising-steps 4 \
+      --guidance-scale 0.0 \
+      --seed 42
+    
     ```