Added documentation for shortcut methods on router

docs/web_reference.rst

@@ -1202,6 +1202,31 @@ Router is any object that implements :class:`AbstractRouter` interface.
 
       :returns: new :class:`PlainRoute` or :class:`DynamicRoute` instance.
 
+   .. method:: add_get(path, *args, **kwargs)
+
+      Shortcut for adding a GET handler. Calls the :meth:`add_route` with \
+      ``method`` equals to ``'GET'``.
+
+   .. method:: add_post(path, *args, **kwargs)
+
+      Shortcut for adding a POST handler. Calls the :meth:`add_route` with \
+      ``method`` equals to ``'POST'``.
+
+   .. method:: add_put(path, *args, **kwargs)
+
+      Shortcut for adding a PUT handler. Calls the :meth:`add_route` with \
+      ``method`` equals to ``'PUT'``.
+
+   .. method:: add_patch(path, *args, **kwargs)
+
+      Shortcut for adding a PATCH handler. Calls the :meth:`add_route` with \
+      ``method`` equals to ``'PATCH'``.
+
+   .. method:: add_delete(path, *args, **kwargs)
+
+      Shortcut for adding a DELETE handler. Calls the :meth:`add_route` with \
+      ``method`` equals to ``'DELETE'``.
+
    .. method:: add_static(prefix, path, *, name=None, expect_handler=None, \
                           chunk_size=256*1024, response_factory=StreamResponse)