sagemathgh-37827: sage.tensor: Tiny doc fixes

    
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URL: sagemath#37827
Reported by: Matthias Köppe
Reviewer(s): Eric Gourgoulhon

src/sage/tensor/modules/ext_pow_free_module.py

@@ -173,7 +173,7 @@ class ExtPowerFreeModule(FiniteRankFreeModule_abstract):
         a = 3 e_0∧e_1 - e_0∧e_2 + 4 e_1∧e_2
 
     An alternative is to construct the alternating contravariant tensor from an
-     empty list of components and to set the nonzero components afterwards::
+    empty list of components and to set the nonzero components afterwards::
 
         sage: a = A([], name='a')
         sage: a.set_comp(e)[0,1] = 3

src/sage/tensor/modules/free_module_basis.py

@@ -48,7 +48,7 @@ class Basis_abstract(UniqueRepresentation, AbstractFamily):
     :class:`Mapping` subclasses, not the :meth:`keys` but the
     :meth:`values` are considered the elements.
 
-    EXAMPLES:
+    EXAMPLES::
 
         sage: M = FiniteRankFreeModule(ZZ, 3, name='M', start_index=1)
         sage: e = M.basis('e'); e
@@ -111,8 +111,8 @@ def values(self):
             sage: e = M.basis('e')
             sage: list(e.values())
             [Element e_0 of the Rank-3 free module M over the Integer Ring,
-            Element e_1 of the Rank-3 free module M over the Integer Ring,
-            Element e_2 of the Rank-3 free module M over the Integer Ring]
+             Element e_1 of the Rank-3 free module M over the Integer Ring,
+             Element e_2 of the Rank-3 free module M over the Integer Ring]
         """
         return self._vec