This code of conduct is under creative common license and aims to "set the frame of community interactions around the corresponding open-source product" as stated in the CoC text. Have a look to the text here, it provides community rules that help creating better places to work and target ethical goals while providing a frame to regulate the community.
Codes of Conducts are part of open-source communities artifacts made to rule the interactions around a product. They do not have any legal value but ethical helping the people better apprehend their work while contributing to a project.
This code of conduct has not been written by a lawyer but by an open-source contributor looking for good.