Add book search to #qutebrowser

qutebrowser/.config/qutebrowser/config.py

@@ -6,6 +6,7 @@ c.url.searchengines = {
     "g": "https://www.google.com/search?q={}",
     "b": "https://www.beeradvocate.com/search/?q={}&qt=beer",
     "m": "https://www.openstreetmap.com/search?query={}",
+    "k": "https://b-ok.cc/s/?q={}",
 }
 
 c.messages.timeout = 5000