git: 06cf413d40 - main - handbook/introduction: Update link to snapshot server

The branch main has been updated by ryusuke:

URL: https://cgit.FreeBSD.org/doc/commit/?id=06cf413d4077ca2e78de17560cf6df9267813e9a

commit 06cf413d4077ca2e78de17560cf6df9267813e9a
Author:     Ryusuke SUZUKI <ryusuke@FreeBSD.org>
AuthorDate: 2022-01-30 01:24:14 +0000
Commit:     Ryusuke SUZUKI <ryusuke@FreeBSD.org>
CommitDate: 2022-01-30 01:24:14 +0000

    handbook/introduction: Update link to snapshot server
    
    Reported by: Pau Amma
---
 documentation/content/en/books/handbook/introduction/_index.adoc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/documentation/content/en/books/handbook/introduction/_index.adoc b/documentation/content/en/books/handbook/introduction/_index.adoc
index 663cdebfcb..02254d5e6a 100644
--- a/documentation/content/en/books/handbook/introduction/_index.adoc
+++ b/documentation/content/en/books/handbook/introduction/_index.adoc
@@ -194,7 +194,7 @@ Despite being still more than a little rough around the edges, the release was a
 
 Since that time, FreeBSD has made a series of releases each time improving the stability, speed, and feature set of the previous version.
 
-For now, long-term development projects continue to take place in the {rel-head}-CURRENT (main) branch, and snapshot releases of {rel-head} are continually made available from link:ftp://ftp.FreeBSD.org/pub/FreeBSD/snapshots/[the snapshot server] as work progresses.
+For now, long-term development projects continue to take place in the {rel-head}-CURRENT (main) branch, and snapshot releases of {rel-head} are continually made available from link:https://download.freebsd.org/snapshots/[the snapshot server] as work progresses.
 
 [[goals]]
 === FreeBSD Project Goals