doc: Use HTTPS for external links.

* doc/contributing.texi
  (14.1 Building from Git,
   14.3 The Perfect Setup,
   14.4.1 Software Freedom,
   14.4.4 Synopses and Descriptions,
   14.5.4 Formatting Code):
   Use HTTPS for @uref{}s and @url{}s that support it.

* doc/fdl-1.3.texi
  (Appendix A GNU Free Documentation License):
  Use HTTPS for @uref{}s and @url{}s that support it.

* doc/guix.texi
  (6.3 Build Systems,
   8.8.4 Networking Services,
   8.8.8 Sound Services,
   8.8.16 Web Services,
   8.11 Name Service Switch,
   12.2 Preparing to Use the Bootstrap Binaries);
   Use HTTPS for @uref{}s and @url{}s that support it.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

1 files changed, 9 insertions, 9 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 1af80849cb..eb6eb99361 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -6778,7 +6778,7 @@ linux-module-build-system, use the key #:linux to specify it).
 
 @defvr {Scheme Variable} node-build-system
 This variable is exported by @code{(guix build-system node)}.  It
-implements the build procedure used by @uref{http://nodejs.org,
+implements the build procedure used by @uref{https://nodejs.org,
 Node.js}, which implements an approximation of the @code{npm install}
 command, followed by an @code{npm test} command.
 
@@ -13351,7 +13351,7 @@ The ModemManager package to use.
 
 @defvr {Scheme Variable} usb-modeswitch-service-type
 This is the service type for the
-@uref{http://www.draisberghof.de/usb_modeswitch/, USB_ModeSwitch} service. The
+@uref{https://www.draisberghof.de/usb_modeswitch/, USB_ModeSwitch} service. The
 value for this service type is a @code{usb-modeswitch-configuration} record.
 
 When plugged in, some USB modems (and other USB devices) initially present
@@ -13596,7 +13596,7 @@ The nftables ruleset to use.  This may be any ``file-like'' object
 @cindex ntpd, service for the Network Time Protocol daemon
 @cindex real time clock
 @defvr {Scheme Variable} ntp-service-type
-This is the type of the service running the @uref{http://www.ntp.org,
+This is the type of the service running the @uref{https://www.ntp.org,
 Network Time Protocol (NTP)} daemon, @command{ntpd}.  The daemon will keep the
 system clock synchronized with that of the specified NTP servers.
 
@@ -14234,7 +14234,7 @@ Its value must be a @code{zero-configuration} record---see below.
 
 This service extends the name service cache daemon (nscd) so that it can
 resolve @code{.local} host names using
-@uref{http://0pointer.de/lennart/projects/nss-mdns/, nss-mdns}.  @xref{Name
+@uref{https://0pointer.de/lennart/projects/nss-mdns/, nss-mdns}.  @xref{Name
 Service Switch}, for information on host name resolution.
 
 Additionally, add the @var{avahi} package to the system profile so that
@@ -16053,7 +16053,7 @@ Data type representing the configuration for @code{alsa-service}.
 
 @item @code{pulseaudio?} (default: @var{#t})
 Whether ALSA applications should transparently be made to use the
-@uref{http://www.pulseaudio.org/, PulseAudio} sound server.
+@uref{https://www.pulseaudio.org/, PulseAudio} sound server.
 
 Using PulseAudio allows you to run several sound-producing applications
 at the same time and to individual control them @i{via}
@@ -16101,7 +16101,7 @@ See @uref{https://www.alsa-project.org/main/index.php/Asoundrc} for the
 details.
 
 @deffn {Scheme Variable} pulseaudio-service-type
-This is the type for the  @uref{http://www.pulseaudio.org/, PulseAudio}
+This is the type for the  @uref{https://www.pulseaudio.org/, PulseAudio}
 sound server.  It exists to allow system overrides of the default settings
 via @code{pulseaudio-configuration}, see below.
 
@@ -20399,7 +20399,7 @@ configuration.  Otherwise this must be a file-like object with valid
 VCL syntax.
 
 @c Varnish does not support HTTPS, so keep this URL to avoid confusion.
-For example, to mirror @url{http://www.gnu.org,www.gnu.org} with VCL you
+For example, to mirror @url{https://www.gnu.org,www.gnu.org} with VCL you
 can do something along these lines:
 
 @lisp
@@ -25828,7 +25828,7 @@ next method in the list.  The NSS configuration is given in the
 @cindex nss-mdns
 @cindex .local, host name lookup
 As an example, the declaration below configures the NSS to use the
-@uref{http://0pointer.de/lennart/projects/nss-mdns/, @code{nss-mdns}
+@uref{https://0pointer.de/lennart/projects/nss-mdns/, @code{nss-mdns}
 back-end}, which supports host name lookups over multicast DNS (mDNS)
 for host names ending in @code{.local}:
 
@@ -28300,7 +28300,7 @@ transparency that we get in the rest of the package dependency graph,
 where Guix always gives us a source-to-binary mapping.  Thus, our goal
 is to reduce the set of bootstrap binaries to the bare minimum.
 
-The @uref{http://bootstrappable.org, Bootstrappable.org web site} lists
+The @uref{https://bootstrappable.org, Bootstrappable.org web site} lists
 on-going projects to do that.  One of these is about replacing the
 bootstrap GCC with a sequence of assemblers, interpreters, and compilers
 of increasing complexity, which could be built from source starting from