command">Your first command</a></li>
<li class="toctree-l2"><a class="reference internal" href="exercise_02-introduction.html#list-words">List words</a></li>
<li class="toctree-l2"><a class="reference internal" href="exercise_02-introduction.html#browse-the-public-library">Browse the public library</a></li>
<li class="toctree-l2"><a class="reference internal" href="exercise_02-introduction.html#build-your-library">Build your library</a></li>
<li class="toctree-l2"><a class="reference internal" href="exercis