add link for tracking abi/api changes

diff --git a/v8.spec b/v8.spec
index 01cf3cce33423132cb7fa640a10c4f1abd333b75..8fbe894e5e346343b26e6f0d21472af9de5a7afa 100644 (file)
--- a/v8.spec
+++ b/v8.spec
@@ -1,3 +1,5 @@
+# NOTES
+# - see this page for deciding switching branch: http://upstream-tracker.org/versions/v8.html
 # TODO
 # - readline not working in d8 (at least arrows)
 #