Update C and C++ documentations

Fixes #515.

lib/docs/scrapers/c.rb

@@ -16,7 +16,8 @@ module Docs
     options[:skip_patterns] = [/experimental/]
 
     options[:fix_urls] = ->(url) do
-      url.sub! %r{\A.+/http%3A/}, "http://"
+      url.sub! %r{\A.+/http%3A/}, 'http://'
+      url.sub! 'http://en.cppreference.com/upload.cppreference.com', 'http://upload.cppreference.com'
       url
     end
 

lib/docs/scrapers/cpp.rb

@@ -24,7 +24,8 @@ module Docs
     options[:only_patterns] = [/\.html\z/]
 
     options[:fix_urls] = ->(url) do
-      url.sub! %r{\A.+/http%3A/}, "http://"
+      url.sub! %r{\A.+/http%3A/}, 'http://'
+      url.sub! 'http://en.cppreference.com/upload.cppreference.com', 'http://upload.cppreference.com'
       url
     end