[1.6.x] Fixed #17238 -- Added source code links to docs using sphinx.ext.viewcode.

# Add any Sphinx extension module names here, as strings. They can be extensions

# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.

extensions = ["djangodocs", "sphinx.ext.intersphinx"]

extensions = ["djangodocs", "sphinx.ext.intersphinx", "sphinx.ext.viewcode"]

# Add any paths that contain templates here, relative to this directory.

# templates_path = []