minor: Add basic editorconfig and pre-commit hooks to enforce style for whitespaces (#1926)

examples/frontend_language/usage/triton/Dockerfile

@@ -7,4 +7,4 @@ RUN git clone https://github.com/sgl-project/sglang.git
 WORKDIR /opt/sglang
 RUN pip install --upgrade pip && \
     pip install -e "python[all]" && \
-    pip install datasets
+    pip install datasets

examples/frontend_language/usage/triton/README.md

@@ -32,4 +32,4 @@ curl -X POST http://localhost:8000/v2/models/character_generation/generate \
   "INPUT_TEXT": ["harry"]
 }'
 
-```
+```