Docstring update (#58)

* migrate docstrings from reST to google format

* add raises note

Also change behaviour of the `from_option` method to fallback to
disabled instead of raising exception on unknown option

* fix part of warnings for sphinx

* make identation a bit more readable

* review fixes

* add verbose description for properties to make them parsed by sphinx extenstion

* add demo sphinx generator

src/ahriman/application/handlers/web.py

@@ -39,11 +39,13 @@ class Web(Handler):
             configuration: Configuration, no_report: bool, unsafe: bool) -> None:
         """
         callback for command line
-        :param args: command line args
-        :param architecture: repository architecture
-        :param configuration: configuration instance
-        :param no_report: force disable reporting
-        :param unsafe: if set no user check will be performed before path creation
+
+        Args:
+            args(argparse.Namespace): command line args
+            architecture(str): repository architecture
+            configuration(Configuration): configuration instance
+            no_report(bool): force disable reporting
+            unsafe(bool): if set no user check will be performed before path creation
         """
         # we are using local import for optional dependencies
         from ahriman.web.web import run_server, setup_service