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

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Author: pre-commit-ci[bot]

comment_sortby.md

@@ -5,10 +5,9 @@ I tested @jsignell's approach locally - it's much cleaner and handles all null t
 Happy to update the PR with this implementation and add a multidimensional test case, e.g.:
 
 ```python
-ds = Dataset({
-    "var": (["x", "y"], [[1, 2], [3, 4], [5, 6]]),
-    "key": ("x", [3.0, np.nan, 1.0])
-})
+ds = Dataset(
+    {"var": (["x", "y"], [[1, 2], [3, 4], [5, 6]]), "key": ("x", [3.0, np.nan, 1.0])}
+)
 result = ds.sortby("key", ascending=False)
 # x order: [0, 2, 1] with NaN row at end
 ```