Update Changes and README (closes #128)

Change-Id: Ib2415ed922358d8dda1ba72531b785dfb4b52e64
diff --git a/Changes b/Changes
index 5356b6a..54f0b4e 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,7 @@
     - Produces export template as service (hebasta)
     - Produces export template on the command line  (hebasta)
     - Produces information of usage on the command line (hebasta)
+    - Single properties can now be overwritten through self-defined property file (closes #128)(hebasta)
 
 0.3.0 2024-6-21
     - Upgrade to Java 17.
diff --git a/README.md b/README.md
index 1703d6e..bf4892c 100644
--- a/README.md
+++ b/README.md
@@ -124,6 +124,8 @@
 java -jar KalamarExportPlugin-[VERSION].jar myconf_exportPlugin.conf
 ```
 
+You can also define only single properties in the new config file. In this case only these properties overwrite the properties in the basic configuration file.
+
 Alternatively a file named `exportPlugin.conf` can be stored in the
 same directory as the java jar.