- * Format a list of articles chunked by letter in a bullet list.
- * @param array $articles
- * @param string[] $articles_start_char
- * @return string
+ * Format a list of articles chunked by letter in a bullet list. This is used
+ * for categories with a small number of pages (when columns aren't needed).
+ * @param string[] $articles HTML links to each article
+ * @param string[] $articles_start_char The header characters for each article
+ * @return string HTML to output