Correct some links

Author: koichik

doc/api/addons.markdown

@@ -77,4 +77,4 @@ All Node addons must export a function called `init` with this signature:
     extern 'C' void init (Handle<Object> target)
 
 For the moment, that is all the documentation on addons. Please see
-<http://github.com/joyent/node_postgres> for a real example.
+<https://github.com/ry/node_postgres> for a real example.

doc/api/appendix_1.markdown

@@ -21,7 +21,7 @@ elsewhere.
 
 - [mDNS/Zeroconf/Bonjour](http://github.com/agnat/node_mdns)
 
-- [RabbitMQ, AMQP](http://github.com/joyent/node-amqp)
+- [RabbitMQ, AMQP](https://github.com/ry/node-amqp)
 
 - [mysql](http://github.com/felixge/node-mysql)