feat: clearly mark template code

src/bin/download.rs

@@ -1,3 +1,7 @@
+/*
+ * This file contains template code.
+ * There is no need to edit this file unless you want to change template functionality.
+ */
 use std::io::Write;
 use std::path::PathBuf;
 use std::{env::temp_dir, io, process::Command};

src/bin/scaffold.rs

@@ -1,3 +1,7 @@
+/*
+ * This file contains template code.
+ * There is no need to edit this file unless you want to change template functionality.
+ */
 use std::{
     fs::{File, OpenOptions},
     io::Write,

src/helpers.rs

@@ -1,4 +1,4 @@
 /*
  * Use this file if you want to extract helpers from your solutions.
- * Example import from this file: `use aoc::helpers::example_fn;`
+ * Example import from this file: `use aoc::helpers::example_fn;`.
  */

src/lib.rs

@@ -1,5 +1,6 @@
 /*
- * This file contains template helpers.
+ * This file contains template code.
+ * There is no need to edit this file unless you want to change template functionality.
  * Prefer `./helpers.rs` if you want to extract code from your solutions.
  */
 use std::env;

src/main.rs

@@ -1,6 +1,6 @@
 /*
  * This file contains template code.
- * Unless you want to change how solutions are invoked, this file does not need to be edited.
+ * There is no need to edit this file unless you want to change template functionality.
  */
 use aoc::{ANSI_BOLD, ANSI_ITALIC, ANSI_RESET};
 use std::process::Command;