diff --git a/docs/content/config/best-practices/spf.md b/docs/content/config/best-practices/spf.md
index 246c1658..632337de 100644
--- a/docs/content/config/best-practices/spf.md
+++ b/docs/content/config/best-practices/spf.md
@@ -1,3 +1,5 @@
+From Wikipedia:
+
 > Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain comes from a host authorized by that domain's administrators. The list of authorized sending hosts for a domain is published in the Domain Name System (DNS) records for that domain in the form of a specially formatted TXT record. Email spam and phishing often use forged "from" addresses, so publishing and checking SPF records can be considered anti-spam techniques.
 
 To add a SPF record in your DNS, insert the following line in your DNS zone: