Please add to GraphViz documenation page for neato, specifically "-Gdim" and "-Gdimen" options

Readers of the "dim" page (https://www.graphviz.org/docs/attrs/dim) don't necessarily know that setting "-Gdim=3" will be ineffective without setting "-Gdimen=3" (and in fact, only the latter is needed). The "dim" page should refer to the "dimen" page (https://www.graphviz.org/docs/attrs/dimen).

The "dimen" page explains the difference between "layout" and "rendering", but I find it confusing. From looking at other graph layout models, I see "layout" as referring to the calculating the coordinates of the nodes. My common understanding of "rendering" is to create an image, e.g., with look and feel, such as texture, shape, colour, etc. The "dimen" page seems to conflate the two. Could this be clarified in the context of GraphViz? The reference from the "dim" page to the "dimen" page should explain that the descriptions are provided on the "dimen" page.

For your consideration....

Thank you.