Fix a bug in fundamentals doc (apache#37440)

* Update fundamentals.rst

* Update docs/apache-airflow/tutorial/fundamentals.rst

Co-authored-by: Wei Lee <weilee.rx@gmail.com>

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Co-authored-by: Jarek Potiuk <jarek@potiuk.com>
Co-authored-by: Wei Lee <weilee.rx@gmail.com>

docs/apache-airflow/tutorial/fundamentals.rst

@@ -218,7 +218,7 @@ on how to implement task and DAG docs, as well as screenshots:
 
 Setting up Dependencies
 -----------------------
-We have tasks ``t1``, ``t2`` and ``t3`` that do not depend on each other. Here's a few ways
+We have tasks ``t1``, ``t2`` and ``t3`` that depend on each other. Here's a few ways
 you can define dependencies between them:
 
 .. code-block:: python