added new movement datasets figure, with caption (#286)

* added new movement datasets figure, with caption * update caption according to review comment --------- Co-authored-by: sfmig <[email protected]>
neuroinformatics-unit · Aug 29, 2024 · 9612951 · 9612951
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diff --git a/docs/source/_static/dataset_structure.png b/docs/source/_static/dataset_structure.png
diff --git a/docs/source/getting_started/movement_dataset.md b/docs/source/getting_started/movement_dataset.md
@@ -19,7 +19,11 @@ To learn more about `xarray` data structures in general, see the relevant
 
 ## Dataset structure
 
-![](../_static/dataset_structure.png)
+```{figure} ../_static/dataset_structure.png
+:alt: movement dataset structure
+
+An {class}`xarray.Dataset` is a collection of several data arrays that share some dimensions. The schematic shows the data arrays that make up the `poses` and `bboxes` datasets in `movement`.
+```
 
 The structure of a `movement` dataset `ds` can be easily inspected by simply
 printing it.