Created Flask Example application for dokploy and added README.MD

Flask-Example/main.py

@@ -0,0 +1,12 @@
+from flask import Flask
+
+app = Flask(__name__)
+
+
+@app.route('/')
+def hello_world():
+    return 'Hello, World!'
+
+
+if __name__ == '__main__':
+    app.run(debug=False, ip="0.0.0.0", port=5000)