Update Django versions (#1008)

Update Django versions

Co-authored-by: Jasper van Merle <jaspervmerle@gmail.com>

lib/docs/scrapers/django.rb

@@ -34,18 +34,23 @@ module Docs
       Licensed under the BSD License.
     HTML
 
+    version '2.2' do
+      self.release = '2.2.4'
+      self.base_url = 'https://docs.djangoproject.com/en/2.2/'
+    end
+
     version '2.1' do
-      self.release = '2.1.0'
+      self.release = '2.1.11'
       self.base_url = 'https://docs.djangoproject.com/en/2.1/'
     end
 
     version '2.0' do
-      self.release = '2.0.7'
+      self.release = '2.0.13'
       self.base_url = 'https://docs.djangoproject.com/en/2.0/'
     end
 
     version '1.11' do
-      self.release = '1.11.9'
+      self.release = '1.11.23'
       self.base_url = 'https://docs.djangoproject.com/en/1.11/'
     end