Another slight improvement in formatting

Author: Thomas Weise

README.md

@@ -23,6 +23,8 @@ Here I provide the source codes of the examples that I use in my distributed com
   1. [examples for XML processing with Java](http://github.com/thomasWeise/distributedComputingExamples/tree/master/xml/java)
 
 
+Each of the above links leads you to a sub-directory containing a set of examples. Each sub-directory has an own `README.md` file with detailed descriptions.
+
 Since I also use the same code in my slides, there are some special comments such as `//(*@\serverBox{2)}@*)` for formatting in my codes ... you can safely ignore them ^_^
 
 ## Licensing