Replace HTTP links with HTTPS ones: Documentation/filesystems

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200621133552.46371-1-grandmaster@al2klimov.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/filesystems/ramfs-rootfs-initramfs.rst b/Documentation/filesystems/ramfs-rootfs-initramfs.rst
index 3fddacc..4598b0d 100644
--- a/Documentation/filesystems/ramfs-rootfs-initramfs.rst
+++ b/Documentation/filesystems/ramfs-rootfs-initramfs.rst
@@ -246,15 +246,15 @@
 you need to get a minimal root filesystem up and running, here are some
 references:
 
-- http://www.tldp.org/HOWTO/Bootdisk-HOWTO/
-- http://www.tldp.org/HOWTO/From-PowerUp-To-Bash-Prompt-HOWTO.html
+- https://www.tldp.org/HOWTO/Bootdisk-HOWTO/
+- https://www.tldp.org/HOWTO/From-PowerUp-To-Bash-Prompt-HOWTO.html
 - http://www.linuxfromscratch.org/lfs/view/stable/
 
-The "klibc" package (http://www.kernel.org/pub/linux/libs/klibc) is
+The "klibc" package (https://www.kernel.org/pub/linux/libs/klibc) is
 designed to be a tiny C library to statically link early userspace
 code against, along with some related utilities.  It is BSD licensed.
 
-I use uClibc (http://www.uclibc.org) and busybox (http://www.busybox.net)
+I use uClibc (https://www.uclibc.org) and busybox (https://www.busybox.net)
 myself.  These are LGPL and GPL, respectively.  (A self-contained initramfs
 package is planned for the busybox 1.3 release.)