[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

docs/source/how_to_guides/provisional_nodes_and_task_generators.md

@@ -89,6 +89,6 @@ content to a `.txt` file.
 ```
 
 ```{important}
-The generated tasks need to be decoratored with {func}`@task <pytask.task>` to be
+The generated tasks need to be decorated with {func}`@task <pytask.task>` to be
 collected.
 ```