Refactor README to include available endpoints and environment variables

Author: hummerichsander

README.md

@@ -2,9 +2,11 @@
 This is a simple fastapi based server mock that implements the OpenAI API.
 
 Available endpoints:
+
 - /v1/chat/completion
 
 Instead of running a LLM model to generate completions, it simply returns a response generated by surrogate models. Available surrogate models are:
+
 - "yes_no": returns random "Yes" or "No" response
 - "ja_nein": returns random "Ja" or "Nein" response
 - "lorem_ipsum": returns random "lorem ipsum" text
@@ -15,6 +17,7 @@ docker pull ghcr.io/hummerichsander/openai_api_server_mock:v ... # replace ... w
 ```
 
 Environment variables:
+
 - `CONTEXT_SIZE`: context size for the model (default: 4096)
 - `SLEEP_TIME`: sleep time in seconds before returning the response (default: 0)
 - `MAX_CONCURRENT_REQUESTS`: maximum number of concurrent requests (default: 10^9)