[mkdocs] Incorrect Heading Sizes

[robertclaus]

The heading sizes for each section are inconsistent.

[adri-arroyo]

Hello Robert! I'm very interested in working on this issue to standardize the format of the headers on the md files. Is there a specific header format you're hoping to set all headers to (Header 2 size for example)? Are there any specific md files that you identified that contain this issue or would you prefer it if I went through all the md files?

Let me know how I can support the project. Thanks in advance.