fix: realtime event payload

docs/examples/java/storage/create-file.md

@@ -21,7 +21,7 @@ public class MainActivity extends AppCompatActivity {
         storage.createFile(
             "[BUCKET_ID]", 
             "[FILE_ID]", 
-            File("./path-to-files/image.jpg"), 
+            File("file.png"), 
             new Continuation<Object>() {
                 @NotNull
                 @Override

docs/examples/kotlin/storage/create-file.md

@@ -20,7 +20,7 @@ class MainActivity : AppCompatActivity() {
             val response = storage.createFile(
                 bucketId = "[BUCKET_ID]",
                 fileId = "[FILE_ID]",
-                file = File("./path-to-files/image.jpg"),
+                file = File("file.png"),
             )
             val json = response.body?.string()        
         }