Update timeline_generator.py

timeline_generator.py

@@ -53,7 +53,7 @@ def generate_timeline_diagram(json_input: str, output_format: str) -> str:
             name='Timeline',
             format='png',
             graph_attr={
-                'rankdir': 'TB',        # Top-to-Bottom for better control
+                'rankdir': 'TB',        # Top-to-Bottom
                 'splines': 'ortho',     # Straight lines with 90-degree bends
                 'bgcolor': 'white',     # White background
                 'pad': '0.8',           # Padding around the graph