✨ Add source examples for Python 3.10 and 3.9 with updated syntax (#842)

Co-authored-by: Esteban Maya Cadavid <emayacadavid9@gmail.com>

docs/tutorial/fastapi/limit-and-offset.md

@@ -22,6 +22,36 @@ By default, we will return the first results from the database, so `offset` will
 
 And by default, we will return a maximum of `100` heroes, so `limit` will have a default value of `100`.
 
+//// tab | Python 3.10+
+
+```Python hl_lines="1  7  9"
+{!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001_py310.py[ln:1-2]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001_py310.py[ln:52-56]!}
+
+# Code below omitted 👇
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python hl_lines="3  9  11"
+{!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001_py39.py[ln:1-4]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001_py39.py[ln:54-58]!}
+
+# Code below omitted 👇
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python hl_lines="3  9  11"
 {!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001.py[ln:1-4]!}
 
@@ -32,12 +62,34 @@ And by default, we will return a maximum of `100` heroes, so `limit` will have a
 # Code below omitted 👇
 ```
 
+////
+
 /// details | 👀 Full file preview
 
+//// tab | Python 3.10+
+
+```Python
+{!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001_py310.py!}
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python
+{!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001_py39.py!}
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python
 {!./docs_src/tutorial/fastapi/limit_and_offset/tutorial001.py!}
 ```
 
+////
+
 ///
 
 We want to allow clients to set different `offset` and `limit` values.