postgresql: add version 13

assets/javascripts/templates/pages/about_tmpl.coffee

@@ -603,7 +603,7 @@ credits = [
     'https://raw.githubusercontent.com/ponylang/ponyc/master/LICENSE'
   ], [
     'PostgreSQL',
-    '1996-2019 The PostgreSQL Global Development Group<br>&copy; 1994 The Regents of the University of California',
+    '1996-2020 The PostgreSQL Global Development Group<br>&copy; 1994 The Regents of the University of California',
     'PostgreSQL',
     'https://www.postgresql.org/about/licence/'
   ], [

lib/docs/scrapers/postgresql.rb

@@ -51,10 +51,15 @@ module Docs
       /\Aunsupported-features/ ]
 
     options[:attribution] = <<-HTML
-      &copy; 1996&ndash;2019 The PostgreSQL Global Development Group<br>
+      &copy; 1996&ndash;2020 The PostgreSQL Global Development Group<br>
       Licensed under the PostgreSQL License.
     HTML
 
+    version '13' do
+      self.release = '13.1'
+      self.base_url = "https://www.postgresql.org/docs/#{version}/"
+    end
+
     version '12' do
       self.release = '12.1'
       self.base_url = "https://www.postgresql.org/docs/#{version}/"

public/icons/docs/postgresql/SOURCE

@@ -1 +1 @@
-http://www.postgresql.org/about/press/presskit93/#logos
+https://www.postgresql.org/about/press/presskit93/#logos