Fix flake8 error in example

Author: tleonhardt

examples/write_table.py

@@ -20,4 +20,4 @@
 
 tf.TableColors.set_color_library('colored')
 with open('table_colored.txt', mode='w') as outfile:
-    print(generate_table(rows, columns, grid_style=tf.FancyGrid()), file=outfile)
+    print(generate_table(rows, columns, grid_style=tf.FancyGrid()), file=outfile)