README.md update

README.md

@@ -20,21 +20,51 @@ dependencies {
 You can work with syncResult.isValid() to check if the license is valid and handle it from there
 ```java
 import de.winniepat.licenselib.LicenseClient;
+import de.winniepat.licenselib.LicenseSuccess;
 
-LicenseClient.LicenseResult syncResult = LicenseClient.check(apiUrl, plugin, licenseKey, serverId);
+public class main {
+    public static void main(String[] args) {
+        LicenseClient.LicenseResult result = LicenseClient.check(
+                apiUrl,
+                plugin,
+                licenseKey,
+                serverId //can be null
+        );
+        if (result instanceof LicenceSuccess success) {
+            if(success.isValid()) {
+                System.out.println("Valid: " + success);
+            } else {
+                System.out.println("Invalid: " + success);
+            }
+        }
+    }
+}
 ```
 
 ### Usage (Async)
 
 Here you can also work with result.isValid() and handle it from there
-````java
+```java
 import de.winniepat.licenselib.LicenseClient;
+import de.winniepat.licenselib.LicenseSuccess;
 
-LicenseClient.checkAsync(apiUrl, plugin, licenseKey, serverId)
+import java.util.concurrent.CompletableFuture;
-    .thenAccept(result -> {
+
-        if (result.isValid()) {
+public class main {
-            System.out.println("Async Valid: " + result);
+    public static void main(String[] args) {
+        CompletableFuture<LicenseClient.LicenseResult> resultAsync = LicenseClient.checkAsync(
+                apiUrl,
+                plugin,
+                licenseKey,
+                serverId
+        );
+        if (result instanceof LicenseSuccess success) {
+            if (success.valid()) {
+                System.out.println("Valid: " + success);
             } else {
-            System.out.println("Async Invalid: " + result);
+                System.out.println("Invalid " + success);
             }
-    });
+        }
+    }
+}
+```