Fix attribution

Author: haarts

lib/docs/scrapers/pony.rb

@@ -5,7 +5,10 @@ class Pony < UrlScraper
     self.base_url = 'https://stdlib.ponylang.io/'
 
     html_filters.push 'pony/container', 'pony/entries'
-    options[:attribution] = "Me"
+
+    options[:attribution] = <<-HTML
+      &copy; 2018 Pony Developers
+    HTML
 
     options[:trailing_slash] = false
     options[:skip_patterns] = [/src/]