Make documentation of Model.save() arguments easier to find and get to

[Chris Jerdonek]

Currently, in the documentation of ​Model.save(), one needs to scroll far down to find documentation of the keyword arguments. For example, for the update_fields argument, one has to scroll down to a section called ​Specifying which fields to save.

I think it would be helpful if, right after Model.save()'s function signature in the docs, there was a sentence or two containing a link to the right section, for each keyword argument argument appearing in the signature. I'm thinking of sentences like, "For documentation of the force_insert and force_update arguments, see the "Forcing an INSERT or UPDATE" section. ..." This will make it clearer where the documentation for the arguments can be found.