From f36fcc5f8a07cbf7be5bf994e53240d99a71542c Mon Sep 17 00:00:00 2001
From: Christopher Landis <christopher.landis@nps.edu>
Date: Mon, 12 Jun 2023 15:39:37 -0700
Subject: [PATCH] updated RFC 4408 citation to RFC 7208 and added link

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 809d362..8e712f0 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ The following values are returned in `results.csv`:
 - `SPF Record DNSSEC` - A boolean value indicating whether or not the
   DNS record is protected by DNSSEC.
 - `Valid SPF` - Whether the SPF record found is syntactically correct,
-  per RFC 4408.
+  per [RFC 7208](https://datatracker.ietf.org/doc/html/rfc7208).
 - `SPF Results` - The textual representation of any SPF record found
   for the domain.