update README.md

README.md

@@ -10,18 +10,12 @@ It uses spring-boot as framework for the web handling. the built binary can be r
 It can be used behind a reverse-proxy like apache or nginx.
 
 To configure the conversion binary use the start parameter `-Dconverter.executable=./IfcConvert`. The converter binaries for linux and 
-windows are included in this repository.
+windows are included in this repository. The service requires executable rights for the converter program.
 
-## Building
-
-To build the service use
-```
-mvn build
-```
 
 ## Packaging
 
-To create a runnable package
+To create a runnable package. This does not package the converter program into the jar. It has to be deployed seperatly.
 
 ```
 mvn package