reformulate Readmes

README.md

@@ -19,7 +19,7 @@ You can check out this repository and run the example classes – to see immedia
 
 ## Tutorial
 
-The [tutorial](https://gitlab.gistools.geog.uni-heidelberg.de/giscience/big-data/ohsome/oshdb-examples/tree/master/src/main/java/org/heigit/ohsome/oshdb/tutorial) is a quick and simple dive into the OSHDB-API-Code.
+The [tutorial](/src/main/java/org/heigit/ohsome/oshdb/tutorial) is a quick and simple dive into the OSHDB-API Code.
 
 ## Analyses
 

src/main/java/org/heigit/ohsome/oshdb/tutorial/README.md

 # Tutorial
 
-The basic tutorial is a realisation of the [OSHDB-API-Tutorial](https://github.com/GIScience/oshdb/blob/master/documentation/oshdb-api-tutorial/README.md). An alternative coding style can be found there. The code here tries to transparently demonstrate the intermediate steps of the process and transfers processing code to separate classes that can easily be extended.
+The basic tutorial is a realisation of the [OSHDB First Steps Tutorial](https://github.com/GIScience/oshdb/blob/master/documentation/first-steps/README.md). An alternative coding style can be found there. The code here tries to transparently demonstrate the intermediate steps of the process and transfers processing code to separate classes that can easily be extended.
 
-The advanced tutorial shows a more complex analysis.
+The [advanced tutorial](/src/main/java/org/heigit/ohsome/oshdb/tutorial/AdvancedExample.java) shows a more complex analysis.