[Skiboot] [PATCH v2] README.md: Update reference to linux SubmittingPatches

[Cyril Bur]

The wise linux gods went an moved the content. May as well point to the
actual content.

Signed-off-by: Cyril Bur <cyril.bur at au1.ibm.com>
---
Joel suggested the web address, this is a good idea.

 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 20898fc9..ad58bb19 100644
--- a/README.md
+++ b/README.md
@@ -100,7 +100,8 @@ git commit -s
 git format-patch
 ```
 
-You probably want to read the linux Documentation/SubmittingPatches as
+You probably want to read the linux
+https://kernel.org/doc/html/latest/process/submitting-patches.html as
 much of it applies to skiboot.
 
 ## License
-- 
2.11.0