📝 Update docs, add first tutorials

docs/tutorial/src/all/tutorial016.py

@@ -0,0 +1,26 @@
+from fastapi import FastAPI, Path
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Item(BaseModel):
+    name: str
+    description: str = None
+    price: float
+    tax: float = None
+
+
+@app.put("/items/{item_id}")
+async def update_item(
+    *,
+    item_id: int = Path(..., title="The ID of the item to get", ge=0, le=1000),
+    q: str,
+    item: Item = None,
+):
+    results = {"item_id": item_id}
+    if q:
+        results.update({"q": q})
+    if item:
+        results.update({"item": item})
+    return results