update readme

README.md

 # SOAP-Service
-## TEST
+## Get Started
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+1. Open folder in Intellij IDEA
+2. Go to File->Project Structure->Project
+3. Change the SDK to correto-1.8 by following these step
+4. *Click* SDK -> + Add SDK -> Download JDK
+5. Change version and vendor to:
+```
+version: 1.8
+vendor: Amazon Corretto
+```
+6. Done
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