Remove cruft from Quanta Magazine articles

recipes/quanta_magazine.recipe

@@ -1,17 +1,28 @@
 #!/usr/bin/env python
 # vim:fileencoding=utf-8
+
 from __future__ import unicode_literals, division, absolute_import, print_function
 from calibre.web.feeds.news import BasicNewsRecipe
 
-
 class Quanta(BasicNewsRecipe):
-    title          = 'Quanta Magazine'
+    title       = "Quanta Magazine"
+    description = "Articles from the magazine. Please set to download weekly."
+
     oldest_article = 7
     max_articles_per_feed = 100
     language = 'en'
-    __author__ = 'lui1'
     encoding = 'UTF-8'
+    publication_type = "blog"
+    cover_url = "https://d2r55xnwy6nx47.cloudfront.net/uploads/2017/05/logo.png"
 
     feeds          = [
         ('Articles', 'https://api.quantamagazine.org/feed/'),
     ]
+
+    keep_only_tags = [
+        dict(name="div", attrs={"id": "postBody"}),
+    ]
+
+    remove_tags = [
+        dict(name="div", attrs={"class": "post__sidebar__content"}),
+    ]