Documentation: Update details of The Linux Kernel Module Programming …

…Guide

Recently, the content and examples of the book "The Linux Kernel Module
Programming Guide" are being actively maintained and added on Github[1].
Currently, the book is being regularly built into webpage and pdf
file using Github static page[2].

[1]: https://github.com/sysprog21/lkmpg
[2]: https://sysprog21.github.io/lkmpg/

Signed-off-by: Chun-Hung Tseng <henrybear327@gmail.com>
Link: https://lore.kernel.org/r/20210820222152.971174-1-henrybear327@gmail.com
[jc: fixed docs-build warnings]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/process/kernel-docs.rst

@@ -126,15 +126,17 @@ On-line docs
         describes how to write user-mode utilities for communicating with
         Card Services.
 
-    * Title: **Linux Kernel Module Programming Guide**
+    * Title: **The Linux Kernel Module Programming Guide**
 
-      :Author: Ori Pomerantz.
-      :URL: https://tldp.org/LDP/lkmpg/2.6/html/index.html
-      :Date: 2001
+      :Author: Peter Jay Salzman, Michael Burian, Ori Pomerantz, Bob Mottram,
+        Jim Huang.
+      :URL: https://sysprog21.github.io/lkmpg/
+      :Date: 2021
       :Keywords: modules, GPL book, /proc, ioctls, system calls,
         interrupt handlers .
-      :Description: Very nice 92 pages GPL book on the topic of modules
-        programming. Lots of examples.
+      :Description: A very nice GPL book on the topic of modules
+        programming. Lots of examples. Currently the new version is being
+        actively maintained at https://github.com/sysprog21/lkmpg.
 
     * Title: **Global spinlock list and usage**