From f329075368e6a6ba1a6fc22ea59c4306de993e9a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lui=CC=81s=20Arteiro?= <lucho14garfield@gmail.com>
Date: Sun, 12 Nov 2023 17:40:23 +0000
Subject: [PATCH] chore: Finishing comment.  #64

---
 lib/useful.ex | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/useful.ex b/lib/useful.ex
index 8601158..5258489 100644
--- a/lib/useful.ex
+++ b/lib/useful.ex
@@ -216,6 +216,8 @@ defmodule Useful do
 
   @doc """
   `is_valid_url?/1` checks if a string is a valid URL.
+  A valid URL starts with a `scheme` (e.g. `http://` or `https://`),
+  so strings that start with "www" are considered invalid.
   """
   def is_valid_url?(string) do
     [:scheme, :host, :port]