Added missing README to explain initial update procedure

Change-Id: Iaf477848275524b7cee827c115bd0766013f3c5e
Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/README b/README
new file mode 100644
index 0000000..2672f6d
--- /dev/null
+++ b/README
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+This repository contains a copy of V8 with additional changes needed for Qt.
+
+Please use [V8] as prefix to the subject of your commit messages when your change
+affects V8 itself and not the build system around it.
+
+Updating v8:
+
+1) Reset src/3rdparty/v8 to a V8 commit of your choice, for example:
+
+    git fetch https://github.com/v8/v8.git refs/tags/3.7.2
+    git rm --cached -r src/3rdparty/v8
+    git read-tree --prefix=src/3rdparty/v8 FETCH_HEAD
+    git checkout src/3rdparty/v8
+    git commit
+
+2) Cherry-pick our modifications from before:
+
+    gitk src/3rdparty/v8
+
+   and then cherry-pick the changes since the last v8 import.