docs: Config Docs Update (#148)

* Add a table & factor debug

* Congfig setting

* Update env example and configuration list.

Also change api priority

* Add a TODO for the rst

* CI: shorter line

* Update docs/installation_and_configuration.rst

* Update docs/installation_and_configuration.rst

* Update links & standard config

* Add TODO

* Fix bug

* Update rdagent/oai/llm_utils.py

---------

Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>

.env.example

@@ -1,15 +1,30 @@
+"""
+This file is a template for the .env file.
+
+Please copy this file to .env and fill in the values.
+
+For more information about configuration options, please refer to the documentation
+
+"""
+
 # Global configs:
+USE_AZURE=False
+USE_AZURE_TOKEN_PROVIDER=False
 MAX_RETRY=10
 RETRY_WAIT_SECONDS=20
 
-# api key
-OPENAI_API_KEY=your_api_key
-
-# embedding model configs:
-EMBEDDING_MODEL=text-embedding-3-small
-
-# chat model configs:
-CHAT_MODEL=your_model_version
+# LLM API Setting:
+OPENAI_API_KEY=<your_api_key>
+CHAT_MODEL=gpt-4-turbo
 CHAT_MAX_TOKENS=3000
 CHAT_TEMPERATURE=0.7
-CHAT_STREAM=True
+# CHAT_AZURE_API_BASE=<for_Azure_user>
+# CHAT_AZURE_API_VERSION=<for_Azure_user>
+
+EMBEDDING_MODEL=text-embedding-3-small
+# EMBEDDING_AZURE_API_BASE=<for_Azure_user>
+# EMBEDDING_AZURE_API_VERSION=<for_Azure_user>
+
+# Cache Setting (Optional):
+
+# Senario Configs: