Misc fixes (#432)

docs/release_process.md

@@ -0,0 +1,8 @@
+```
+pip install build twine
+```
+
+```
+cd python
+bash upload_pypi.sh
+```

docs/test_process.md

@@ -81,3 +81,9 @@ python -m sglang.launch_server --model-path meta-llama/Llama-2-7b-chat-hf --port
 cd test/lang
 python3 run_all.py
 ```
+
+## OpenAI API server
+```
+cd test/srt
+python test_openai_server.py
+```