Update README.md

README.md

@@ -105,20 +105,27 @@ This application reads the data model of your DIRIGERA and outputs it as JSON. B
 we can determine at which points the API data model deviates or is 
 incomplete. You may submit the generated dump as an issue to GitHub.
 
-#### Build and run the Dump Application
-1) Clone repository:
-```bash
-git clone [email protected]:dvdgeisler/DirigeraClient.git
-cd DirigeraClient
-```
-2) Build project:
-```bash
-./mvnw package
-```
-3) Run the Dump-Application:
-```bash
-java -jar ./dirigera-client-dump/target/dirigera-client-dump.jar --dirigera.hostname=<DIRIGERA-IP-ADDRESS>
-```
+#### Run the Dump Application
+##### Prerequisites:
+* Java 17 (or higher) has to be installed
+  * Download Java the latest OpenJDK for your operating system [here](https://openjdk.org)
+  * Unpack the zip file to a location of your choosing
+  * Add `JAVA_HOME` to your environment variables with the following path `<PATH_TO_UNPACKED_ZIP_FILE>`
+  * Add `%JAVA_HOME%\bin` to your path variable
+  * Reboot your pc
+  * Execute `java -version`
+    * This should output something like:
+    ```
+      openjdk version "17.0.2" 2022-01-18
+      OpenJDK Runtime Environment (build 17.0.2+8-86)
+      OpenJDK 64-Bit Server VM (build 17.0.2+8-86, mixed mode, sharing)
+    ```
+* DIRIGERA Gateway is connected to the internet
+  * Find the IP address of your DIRIGERA Gateway in your router.
+
+##### Instructions
+1) Download the latest [dirigera-client-dump.jar](https://github.com/dvdgeisler/DirigeraClient/releases)
+2) Run `java -jar dirigira-client-dump.jar --dirigera.hostname=<ip address of DIRIGERA Gateway>`
 
 ## Integration to Home Assistant