EUCLIDMNGT-1275 sort categories in the help

Author: Jorge Fernandez Hernandez

astroquery/esa/euclid/core.py

@@ -1293,12 +1293,12 @@ def get_scientific_data_product_list(self, *, observation_id=None, tile_index=No
         category: str, optional, default None.
             Available categories:
 
-                #. 'Clusters of Galaxies'
-                #. 'External Data Products'
-                #. 'Galaxy Clustering Products'
                 #. 'Internal Data Products'
+                #. 'External Data Products'
                 #. 'Weak Lensing Products'
-                3. 'PHZ'
+                #. 'Galaxy Clustering Products'
+                #. 'Clusters of Galaxies'
+                #. 'PHZ'
         group : str, optional, default None
             Available groups per category: