First implementation (#1)

Reviewed-on: #1

.markdownlint.jsonc

@@ -0,0 +1,9 @@
+{
+  // One sentence per line makes long lines normal, and tables are wide.
+  "MD013": false,
+  // The chapters use the same subheadings in different sections.
+  "MD024": { "siblings_only": true },
+  // Numbered algorithm steps keep their numbers.
+  "MD029": { "style": "ordered" },
+  "MD033": false
+}