Update jQuery documentation (3.3.1)

lib/docs/scrapers/jquery/jquery_core.rb

@@ -1,9 +1,13 @@
 module Docs
   class JqueryCore < Jquery
     self.name = 'jQuery'
-    self.release = 'up to 3.3.1'
+    self.release = '3.3.1'
     self.base_url = 'https://api.jquery.com/'
     self.initial_paths = %w(/index/index)
+    self.links = {
+      home: 'https://jquery.com/',
+      code: 'https://github.com/jquery/jquery'
+    }
 
     html_filters.insert_before 'jquery/clean_html', 'jquery_core/entries'