Documentation fixes

[asbates]

Documentation issues noted as part of #125 but are quite involved.

• A number of examples use :::. We shouldn't use this.
• merge_expression_module and merge_expression_srv use chunks.

[donyunardi]

I feel that the points that you made can be split into two issues.

merge_expression_module and merge_expression_srv use chunks.

Lets handle this part with #129

As for this

A number of examples use :::. We shouldn't use this.

Let's discuss this with the team first and come to an agreement since teal.transform is not only place that I see this happening, mostly internal functions.

Adding this topic to insightsengineering/nestdevs-tasks#17

[donyunardi]

Topics are addressed or handled in other issue for efficiency.
Closing.