fix: update example file order in documentation configuration

Author: fbriol

docs/source/conf.py

@@ -56,17 +56,18 @@ def __call__(self, fname: str) -> int:
             "ex_axis.py": 1,
             "ex_geodetic.py": 2,
             "ex_geohash.py": 3,
-            "ex_2d.py": 4,
-            "ex_3d.py": 5,
-            "ex_4d.py": 6,
-            "ex_unstructured.py": 7,
-            "ex_orbit.py": 8,
-            "pangeo_unstructured_grid.py": 9,
-            "pangeo_time_series.py": 10,
-            "ex_descriptive_statistics.py": 11,
-            "ex_binning.py": 12,
-            "ex_dateutils.py": 13,
-            "ex_fill_undef.py": 14,
+            "ex_1d.py": 4,
+            "ex_2d.py": 5,
+            "ex_3d.py": 6,
+            "ex_4d.py": 7,
+            "ex_unstructured.py": 8,
+            "ex_orbit.py": 9,
+            "pangeo_unstructured_grid.py": 10,
+            "pangeo_time_series.py": 11,
+            "ex_descriptive_statistics.py": 12,
+            "ex_binning.py": 13,
+            "ex_dateutils.py": 14,
+            "ex_fill_undef.py": 15,
         }
         return order[pathlib.Path(fname).name]