feat(mysql): database table created for example

mysql/dump/dump.sql

@@ -7,6 +7,18 @@ CREATE TABLE user (
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );
 
+CREATE TABLE example (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(50) NOT NULL,
+    description VARCHAR(255) NOT NULL,
+    image VARCHAR(255) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
 INSERT INTO user (username, password, roles) VALUES 
 ('dqnid', '$2b$10$DDGh9u4yiTY9FJx2faFPlucBbTB6Y3i8YkH7AEztcpeaKv08AjdrW', 'admin'),
 ('albi', '$2b$10$DDGh9u4yiTY9FJx2faFPlucBbTB6Y3i8YkH7AEztcpeaKv08AjdrW', 'admin');
+
+INSERT INTO example (name, description, image) VALUES 
+('dqnid', 'This is a short text stored in a mysql database', 'https://picsum.photos/200/300'),
+('albi._.ta', 'This is another short text stored in a mysql database and retrieved by a NestJS backend', 'https://picsum.photos/200/300');