[gantt] {style: unicode} timeline: Week 1|Week 2|Week 3|Week 4|Week 5 task 1| 0 ~ 0.6 task 2| 0.9 ~ 2.3 task 3| 2.0 ~ 2.8 task 4| 2.8 ~ 3.5 task 5| 3.5 ~ 5.0