Set chapter title separately

We avoid the anchor link on mouse-over this way.

blog/content/edition-3/chapters/bare-bones.md

@@ -1,6 +1,5 @@
 +++
+title = "Bare Bones"
 +++
 
-## Bare Bones
-
 In this first chapter, we explain how to create an operating system for the `x86_64` architecture step for step. Starting from scratch, we first create a minimal Rust executable that doesn't depend on the standard library. We then turn it into a bootable OS kernel by combining it with a bootloader. The resulting disk image can then be launched in the [QEMU](https://www.qemu.org/) emulator or booted on a real machine.

blog/templates/edition-3/index.html

@@ -41,6 +41,7 @@
 {% set chapter_slug = chapter | slugify %}
 <div class="posts {{chapter_slug}}">
 {% set chapter_page = get_page(path = "edition-3/chapters/" ~ chapter_slug ~ ".md" ) %}
+<h2>{{ chapter_page.title }}</h2>
 {{ chapter_page.content | safe }}
 
         {%- endif -%}