Update api docs config and readme

Author: danmichaelo

README.md

@@ -47,8 +47,11 @@ while ($response && count($response->records) != 0) {
 }
 ```
 
-### To generate documentation
+### API documentation 
+
+API documentation can be generated using e.g. [Sami](https://github.com/fabpot/sami),
+which is included in the dev requirements of `composer.json`.
 
     php vendor/bin/sami.php update sami.config.php -v
 
-```
+You can view it at [scriptotek.github.io/php-sru-client](//scriptotek.github.io/php-sru-client/)