doc: replace MARC links with lore.kernel.org

Since we're now recommending lore.kernel.org, replace marc.info links
with lore.kernel.org.

Although MARC has been around for a long time, nothing lasts forever
(see Gmane). Since MARC uses opaque message identifiers, switching to
lore.kernel.org should be a strict improvement since, even if
lore.kernel.org goes down, the Message-ID will allow future readers to
look up the referenced messages on any other archive.

We leave behind one reference to MARC in the README.md since it's a
perfectly fine mail archive for personal reading, just not for linking
messages for the future.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-bisect-lk2009.txt

@@ -1353,6 +1353,6 @@ References
 - [[[4]]] https://lore.kernel.org/git/7vps5xsbwp.fsf_-_@assigned-by-dhcp.cox.net/[Junio C Hamano. 'Automated bisect success story'.]
 - [[[5]]] https://lwn.net/Articles/317154/[Christian Couder. 'Fully automated bisecting with "git bisect run"'. LWN.net.]
 - [[[6]]] https://lwn.net/Articles/277872/[Jonathan Corbet. 'Bisection divides users and developers'. LWN.net.]
-- [[[7]]] http://marc.info/?l=linux-kernel&m=119702753411680&w=2[Ingo Molnar. 'Re: BUG 2.6.23-rc3 can't see sd partitions on Alpha'. Linux-kernel mailing list.]
+- [[[7]]] https://lore.kernel.org/lkml/20071207113734.GA14598@elte.hu/[Ingo Molnar. 'Re: BUG 2.6.23-rc3 can't see sd partitions on Alpha'. Linux-kernel mailing list.]
 - [[[8]]] https://www.kernel.org/pub/software/scm/git/docs/git-bisect.html[Junio C Hamano and the git-list. 'git-bisect(1) Manual Page'. Linux Kernel Archives.]
 - [[[9]]] https://github.com/Ealdwulf/bbchop[Ealdwulf. 'bbchop'. GitHub.]

Documentation/gitcli.txt

@@ -205,8 +205,8 @@ only affects the files in the working tree, but with
 entries, and with `--cached`, it modifies only the index
 entries.
 
-See also http://marc.info/?l=git&m=116563135620359 and
+See also https://lore.kernel.org/git/7v64clg5u9.fsf@assigned-by-dhcp.cox.net/ and
-http://marc.info/?l=git&m=119150393620273 for further
+https://lore.kernel.org/git/7vy7ej9g38.fsf@gitster.siamese.dyndns.org/ for further
 information.
 
 Some other commands that also work on files in the working tree and/or

Documentation/user-manual.txt

@@ -4687,5 +4687,5 @@ Write a chapter on using plumbing and writing scripts.
 Alternates, clone -reference, etc.
 
 More on recovery from repository corruption.  See:
-	http://marc.info/?l=git&m=117263864820799&w=2
+	https://lore.kernel.org/git/Pine.LNX.4.64.0702272039540.12485@woody.linux-foundation.org/
-	http://marc.info/?l=git&m=117147855503798&w=2
+	https://lore.kernel.org/git/Pine.LNX.4.64.0702141033400.3604@woody.linux-foundation.org/

t/t6021-merge-criss-cross.sh

@@ -3,7 +3,7 @@
 # Copyright (c) 2005 Fredrik Kuivinen
 #
 
-# See http://marc.info/?l=git&m=111463358500362&w=2 for a
+# See https://lore.kernel.org/git/Pine.LNX.4.44.0504271254120.4678-100000@wax.eds.org/ for a
 # nice description of what this is about.