chore: rename package to hello-fastapi and improve readme with exposed endpoints

Author: asaf

README.md

@@ -1,6 +1,12 @@
-# hello-python-fastapi
+# hello-fastapi
 
-Python FastAPI Hello App
+Hello FastAPI is a tiny web server that responds to a GET request with a JSON response.
+
+It exposes the following endpoints:
+
+- `/api` - returns a JSON response with a message "Hello, FastAPI!", env vars starting with `HELLO_` and request headers.
+- `/docs` - FastAPI's auto-generated API documentation.
+- `/openapi.json` - FastAPI's auto-generated OpenAPI schema.
 
 # Setup
 
@@ -19,6 +25,6 @@ uvicorn main:app --port 5001 --reload
 Bulild and run via docker:
 
 ```bash
-docker build -t hello-python-fastapi .
-docker run --rm -p 5001:8000 hello-python-fastapi
+docker build -t hello-fastapi .
+docker run --rm -p 5001:8000 hello-fastapi
 ```