diff --git a/config/example/README.md b/config/example/README.md
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+# Examples of correct configuration file structures 
+
+Here are files in all supported formats and with all possible configuration values
+of NeoFS applications.
+
+All parameters are correct, however, they are for informational purposes only. 
+It is not recommended to transfer these configs for real application launches.
+
+## Config files
+
+- Storage node
+  - JSON: `node.json`
+  - YAML: `node.yaml`
\ No newline at end of file
diff --git a/config/example/node.json b/config/example/node.json
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+{
+  "logger": {
+    "level": "debug"
+  }
+}
diff --git a/config/example/node.yaml b/config/example/node.yaml
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+logger:
+  level: debug