[bitbake][wrynose][2.18][PATCH 3/3] README: Add "2.18" subject-prefix to git-send-email suggestion

From: Yoann Congal <[email protected]>

That might help new users send correct first stable patches.

Signed-off-by: Yoann Congal <[email protected]>
---
 README | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README b/README
index e9f4c858e..0701dbbe2 100644
--- a/README
+++ b/README
@@ -24,12 +24,12 @@ for full details on how to submit changes.
 As a quick guide, patches should be sent to [email protected]
 The git command to do that would be:
 
-    git send-email -M -1 --to [email protected]
+    git send-email -M -1 --to [email protected] --subject-prefix="2.18][PATCH
 
 If you're sending a patch related to the BitBake manual, make sure you copy
 the Yocto Project documentation mailing list:
 
-    git send-email -M -1 --to [email protected] --cc [email protected]
+    git send-email -M -1 --to [email protected] --cc [email protected] --subject-prefix="2.18][PATCH
 
 Mailing list: