https://docs.blender.org/manual/en/dev/modeling/meshes/properties/object_data.html

This page has several todos. And I am fine with giving a brief (1-2 sentence) description of each a link to their dedicated page.

The normals section should be combined with https://docs.blender.org/manual/en/dev/modeling/meshes/editing/normals.html
I think the object data page should be expanded and the normal editing page should link to the mesh object data page.