Add documentation to manifest

MANIFEST.in

@@ -1,3 +1,3 @@
-include COPYING NEWS.md README.md
+include COPYING DOCUMENTATION.md NEWS.md README.md
 include config rights
 include radicale.py radicale.fcgi radicale.wsgi

setup.py

@@ -48,7 +48,6 @@ WEB_FILES = ["web/internal_data/css/icon.png",
              "web/internal_data/fn.js",
              "web/internal_data/index.html"]
 
-
 needs_pytest = {"pytest", "test", "ptr"}.intersection(sys.argv)
 pytest_runner = ["pytest-runner"] if needs_pytest else []
 tests_require = ["pytest-runner", "pytest", "pytest-cov", "pytest-flake8",