Replace Signature with primaryCodeSample

[razor-x]

[DebbieAtSeam]

I suggest that just for the first code sample, we make the reader focus on the code blocks and not the accompanying title and text. Lets please omit the title for the first code sample and move the description to right above "Code:"

[razor-x]

@DebbieAtSeam https://docs.seam.co/latest/~/revisions/YhF1FRaxI94O18y0EEO1/api/acs/users/create

[DebbieAtSeam]

@razor-x Please switch the order of the inline description and "Code:"