📝 Add docs

docs/tutorial/fastapi/delete.md

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+# Delete Data with FastAPI
+
+Let's now add a *path operation* to delete a hero.
+
+This is quite straightforward. 😁
+
+## Delete Path Operation
+
+Because we want to **delete** data, we use an HTTP `DELETE` operation.
+
+We get a `hero_id` from the path parameter and verify if it exists, just as we did when reading a single hero or when updating it, **possibly raising an error** with a `404` response.
+
+And if we actually find a hero, we just delete it with the **session**.
+
+```Python hl_lines="3-11"
+# Code above omitted 👆
+
+{!./docs_src/tutorial/fastapi/delete/tutorial001.py[ln:91-99]!}
+
+# Code below omitted 👇
+```
+
+<details>
+<summary>👀 Full file preview</summary>
+
+```Python
+{!./docs_src/tutorial/fastapi/delete/tutorial001.py!}
+```
+
+</details>
+
+After deleting it successfully, we just return a response of:
+
+```JSON
+{
+    "ok": true
+}
+```
+
+## Recap
+
+That's it, feel free to try it out in the interactve docs UI to delete some heroes. 💥
+
+Using **FastAPI** to read data and combining it with **SQLModel** makes it quite straightforward to delete data from the database.