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

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Author: pre-commit-ci[bot]

en/admin-guide/interlis-io/index.rst

@@ -135,9 +135,9 @@ All export models define the identifier attribute as MANDATORY. Therefore the ex
 You will get a list of missing identifiers per class. Please add an identifier. If you do not have a separte identifier scheme for that class just copy the obj_id.
 
 3. Check of missing references to organisation
-Release 2015 has MANDATORY constraints for 
+Release 2015 has MANDATORY constraints for
 
-- wastewater_structure.fk_owner 
+- wastewater_structure.fk_owner
 - wastewater_structure.fk_operator
 
 .. figure:: images/export_check_fk_owner_null.png