Add a JavaDoc link

Author: nakamura-to

docs/sources/index.rst

@@ -75,6 +75,7 @@ Links
 =====
 
 * `GitHub repository <https://github.com/domaframework/doma>`_
+* `JavaDoc <http://www.javadoc.io/doc/org.seasar.doma/doma>`_
 * `Examples <https://github.com/domaframework/simple-examples>`_
 * `Doma-Gen <http://doma-gen.readthedocs.org/>`_
 * `Doma 1 <http://doma.seasar.org/>`_