Add Support to Hadamard Product

[RoyiAvital]

Add support for Hadamard Product.

[asterycs]

This is already implemented, see e.g. the tests here. I should add some examples to the documentation.

[RoyiAvital]

It does not appear in the documentation about supported operations: https://github.com/asterycs/DiffMatic.jl/blob/021ec18dd6216f2f03ccca7fc9e4f19f88cb4384/README.md.

[asterycs]

You can use .*, i.e. dot-multiply for element-wise products when creating expressions. This is the same as the Hadamard product when the operands have the same shape, i.e. vector-vector or matrix-matrix. In the output, element-wise products are indicated with ⊙.

[RoyiAvital]

I understood that. I just said it should be also written in the README so others will be able to see this.

[asterycs]

Ok gotcha! I've updated the readme now but I'll leave this open until I've added some examples to the documentation.

[asterycs]

Closed by 8fc136c