!14977 update document of matrixinverse

From: @mind-lh
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

mindspore/ops/operations/math_ops.py

@@ -4493,7 +4493,7 @@ class MatrixInverse(PrimitiveWithInfer):
 
     Inputs:
         - **x** (Tensor) - A matrix to be calculated. The matrix must be at least two dimensions, and the last two
-                           dimensions must be the same size. types: float32, float64.
+          dimensions must be the same size. types: float32, float64.
 
     Outputs:
         Tensor, has the same type and shape as input `x`.

mindspore/ops/operations/nn_ops.py

@@ -2339,7 +2339,7 @@ class SparseSoftmaxCrossEntropyWithLogits(PrimitiveWithInfer):
         ``GPU`` ``CPU``
 
     Examples:
-        Please refer to :class:`mindspore.nn.SparseSoftmaxCrossEntropyWithLogits`
+        Please refer to :class:`mindspore.ops.SparseSoftmaxCrossEntropyWithLogits`
     """
 
     @prim_attr_register