Device better ways to link examples to an op specification

[sdasgup3]

Request description

Currently, the spec inline examples, demonstrating the working of an op, as follows:

// %x: [[1, 2], [3, 4]]
// %y: [[5, 6], [7, 8]]
%z = stablehlo.add %x, %y : tensor<2x2xf32>
// %z: [[6, 8], [10, 12]]

In the near future, let's think about the best way of providing these examples. For example, can we just link to the interpreter implementation of the op, so that people can check out the test suite? Or, more generally, let's rename this section to "Implementation" and link to the source code?

Additional context

No response

[sdasgup3]

Once we have a couple of op implementations + tests ready, we will start adding links of corresponding test files in the spec

[sdasgup3]

No progress last week. I am planning to address this by the end of this week.