DOC: Misc fixes.

[Carreau]

Mostly missing space before colon leading to incorrect parsing of
name/type for parameters.

A couple of parameter name misspelling. Non existing parameters as well.

For reviewers

• Check that the PR title is short, concise, and will make sense 1 year
  later.
• Check that new functions are imported in corresponding __init__.py.
• Check that new features, API changes, and deprecations are mentioned in
  doc/release/release_dev.rst.

[grlee77]

Great! All of these look like desirable changes to me.