Update README.markdown

Author: cmyker

README.markdown

@@ -47,5 +47,10 @@ Do not forget to declare a variable type $ redis
  * Click "Open"
  * Click "OK"
 
-### Setup in IDE Eclipse PDT
+### Setup in Zend Studio IDE (Eclipse PDT)
+
+ * Open "Window" -> "Preferences"
+ * In preferences dialog open "PHP" -> "PHP Libriaries"
+ * Click "New" button, in "User library name" enter "Redis", click "OK"
+ * Select newly created "Redis", library Click "Add external folder", select path to the folder which contains your checkout of phpredis-phpdoc or you can download single "Redis.php" file https://raw.github.com/ukko/phpredis-phpdoc/master/src/Redis.php