chore: import upstream snapshot with attribution

docs/workflow/task/storage.md

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+# Storage Task
+
+![task](../../images/task.png#only-light)
+![task](../../images/task-dark.png#only-dark)
+
+The Storage Task expands a local directory or cloud storage bucket into a list of URLs to process.
+
+## Example
+
+The following shows a simple example using this task as part of a workflow.
+
+```python
+from txtai.workflow import StorageTask, Workflow
+
+workflow = Workflow([StorageTask()])
+workflow(["s3://path/to/bucket", "local://local/directory"])
+```
+
+## Configuration-driven example
+
+This task can also be created with workflow configuration.
+
+```yaml
+workflow:
+  tasks:
+    - task: storage
+```
+
+## Methods
+
+Python documentation for the task.
+
+### ::: txtai.workflow.StorageTask.__init__