Change in coreboot[master]: Documentation: Update index.md and add 4.18 release notes

[Martin L Roth (Code Review)]

Martin L Roth has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/64843 )

Change subject: Documentation: Update index.md and add 4.18 release notes
......................................................................

Documentation: Update index.md and add 4.18 release notes

Signed-off-by: Martin Roth 
Change-Id: I52814ebbae804ea0ff24a7cec0618054029b8b47
---
A Documentation/releases/coreboot-4.18-relnotes.md
M Documentation/releases/index.md
2 files changed, 18 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/43/64843/1

diff --git a/Documentation/releases/coreboot-4.18-relnotes.md b/Documentation/releases/coreboot-4.18-relnotes.md
new file mode 100644
index 0000000..5fa72c2
--- /dev/null
+++ b/Documentation/releases/coreboot-4.18-relnotes.md
@@ -0,0 +1,16 @@
+Upcoming release - coreboot 4.18
+================================
+
+The 4.18 release is planned for August 2022.
+
+Update this document with changes that should be in the release notes.
+
+* Please use Markdown.
+* See the past few release notes for the general format.
+* The chip and board additions and removals will be updated right
+  before the release, so those do not need to be added.
+
+Significant changes
+-------------------
+
+### Add significant changes here
diff --git a/Documentation/releases/index.md b/Documentation/releases/index.md
index 91710f1..f1326b6 100644
--- a/Documentation/releases/index.md
+++ b/Documentation/releases/index.md
@@ -3,7 +3,7 @@
 ## Upcoming release

Please add to the release notes as changes are added:
-* [4.17 - May 2022](coreboot-4.17-relnotes.md)
+* [4.18 - Aug 2022](coreboot-4.18-relnotes.md)

The [checklist] contains instructions to ensure that a release covers all
 important things and provides a reliable format for tarballs, branch
@@ -15,6 +15,7 @@

## Previous releases

+* [4.17 - May 2022](coreboot-4.17-relnotes.md)
 * [4.16 - Feb 2022](coreboot-4.16-relnotes.md)
 * [4.15 - November 2021](coreboot-4.15-relnotes.md)
 * [4.14 - May 2021](coreboot-4.14-relnotes.md)