chore: import upstream snapshot with attribution

doc/source/data/user-guide.rst

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+.. _data_user_guide:
+
+===========
+User Guides
+===========
+
+If you’re new to Ray Data, start with the
+:ref:`Ray Data Quickstart <data_quickstart>`.
+This user guide helps you navigate the Ray Data project and
+shows you how to achieve several tasks.
+
+.. toctree::
+    :maxdepth: 2
+
+    loading-data
+    inspecting-data
+    transforming-data
+    aggregating-data
+    iterating-over-data
+    joining-data
+    shuffling-data
+    mixing-data
+    saving-data
+    working-with-images
+    working-with-text
+    working-with-tensors
+    working-with-pytorch
+    working-with-llms
+    how-to-avoid-ooms
+    monitoring-your-workload
+    execution-configurations
+    concurrent-dataset-execution
+    batch_inference
+    performance-tips
+    scaling-collation-functions
+    custom-datasource-example