const NOTEBOOKS = [
    ("初识 Julia",  "01-Introducing-Julia.jl"),
    ("概率入门",     "02-Basic-Probability.jl"),
    ("概率分布",     "03-Probability-Distributions.jl"),
    ("数据整理",     "04-Processing-and-Summarizing-Data.jl"),
    ("统计推论",     "05-Statistical-Inference-Concepts.jl"),
    ("置信区间",     "06-Confidence-Intervals.jl"),
    ("假设检验",     "07-Hypothesis-Testing.jl"),
    ("线性回归",     "08-Linear-Regression-and-Extensions.jl"),
    ("机器学习",     "09-Machine-Learning-Basics.jl"),
    ("动态模型",     "10-Simulation-of-Dynamic-Models.jl"),
    ("用 Julia 分析新冠病毒", "Covid-with-Julia.jl")
    ]