Update README.md

-added link to documentation
-other minor changes.

Author: jacobwilliams

README.md

@@ -141,11 +141,15 @@ of pointers.  See the json_example.f90 file for more examples.
 Other Comments
 ---------------
 
-This code is a fork and extensive upgrade of the Fortran 95 FSON code
-that can be found at: <https://github.com/josephalevin/fson>.  It
+This code is a fork and extensive upgrade of the Fortran 95 [FSON](https://github.com/josephalevin/fson) code.  It
 includes many features that the original code did not have, and fixes
 many of that code's bugs.
 
+Documentation
+--------------
+
+The API documentation can be found [here](http://jacobwilliams.github.io/json-fortran).  The documentation can also be generated by processing the source files with [RoboDoc](http://rfsber.home.xs4all.nl/Robo/). 
+
 More About JSON
 ------------
 For more information about JSON, see: <http://www.json.org/>