Add a bit of documentation

src/list.rs

@@ -6,18 +6,26 @@ use std::io::prelude::*;
 use std::path::PathBuf;
 use std::time::SystemTime;
 
+/// Converts raw string data (in Markdown format) to HTML
 pub fn data_to_html(data: &String) -> String {
     comrak::markdown_to_html(data,
         &comrak::ComrakOptions::default())
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
+/// Structure for representing a wish list
 pub struct List {
+    /// The ID of the list (unique string)
     pub id: String,
+    /// The index of the list (unique number)
     pub index: i8,
+    /// The raw list data
     pub data: String,
+    /// The time the list was last modified
     pub mtime: SystemTime,
+    /// The name of the list, i.e. the person it is for
     pub name: String,
+    /// The path to the list file
     path: PathBuf
 }