docs(lm_evaluation_harness.md): tutorial showing how to use lm evaluation harness with tgi

docs/my-website/docs/tutorials/lm_evaluation_harness.md

@@ -0,0 +1,24 @@
+# LM-Evaluation Harness with TGI
+
+Evaluate LLMs 20x faster with TGI via litellm proxy's `/completions` endpoint. 
+
+**Step 1: Start the local proxy**
+```shell
+$ litellm --model huggingface/bigcode/starcoder
+```
+
+OpenAI Compatible Endpoint at http://0.0.0.0:8000
+
+**Step 2: Set OpenAI API Base**
+```shell
+$ export OPENAI_API_BASE="http://0.0.0.0:8000"
+```
+
+**Step 3: Run LM-Eval-Harness**
+
+```shell
+$ python3 main.py \
+  --model gpt3 \
+  --model_args engine=huggingface/bigcode/starcoder \
+  --tasks hellaswag
+```

docs/my-website/sidebars.js

@@ -98,6 +98,7 @@ const sidebars = {
         'tutorials/oobabooga',
         "tutorials/gradio_integration",
         "tutorials/model_config_proxy",
+        "tutorials/lm_evaluation_harness",
         'tutorials/huggingface_codellama',
         'tutorials/huggingface_tutorial', 
         'tutorials/TogetherAI_liteLLM',