Merge branch 'lineage-21.0' of https://github.com/LineageOS/android_packages_apps_Dialer into leaf-3.2

Change-Id: Iab9dabaca2d6700307a20e8d04c31fa61a7e2548
diff --git a/README b/README
new file mode 100644
index 0000000..15142ba
--- /dev/null
+++ b/README
@@ -0,0 +1,2 @@
+This app is not actively supported and the source is only available as a reference. This project will be removed from the source manifest sometime in the future.
+