Include page number in title (#250)

Merge pull request 250

lib/jekyll-seo-tag/drop.rb

@@ -53,6 +53,12 @@ module Jekyll
             page_title || site_title
           end
         end
+
+        if page_number
+          return page_number + @title
+        end
+
+        @title
       end
 
       def name
@@ -175,6 +181,17 @@ module Jekyll
         page["url"] =~ HOMEPAGE_OR_ABOUT_REGEX
       end
 
+      def page_number
+        return unless @context["paginator"] && @context["paginator"]["page"]
+
+        current = @context["paginator"]["page"]
+        total = @context["paginator"]["total_pages"]
+
+        if current > 1
+          return "Page #{current} of #{total} for "
+        end
+      end
+
       attr_reader :context
 
       def fallback_data