feat: logs filter (#95)

tutorial/tutorial_1_node_lifecycle.cpp

@@ -22,10 +22,15 @@
 #include <string>
 #include "plugin.h"
 
-/// The main class we work with is `Libp2pModuleImpl`. Let's create one with
-/// default options:
 int main()
 {
+    printf("=== Tutorial 1: Creating and Starting a libp2p Node ===\n\n");
+
+    setLogLevel(LogLevel::Fatal);
+
+/// The main class we work with is `Libp2pModuleImpl`. Let's create one with
+/// default options:
+
     // Create a libp2p node with default configuration.
     // By default it listens on 127.0.0.1 with a random port (tcp/0).
     Libp2pModuleImpl node;
@@ -95,6 +100,8 @@ int main()
     node.stop();
     printf("Node stopped\n");
 
+    printf("\n=== Tutorial 1 Complete ===\n");
+
     return 0;
 }