include packages as submodules

[dotemacs] / packages / expand-region

diff --git a/packages/expand-region b/packages/expand-region
new file mode 160000 (submodule)
index 0000000..59f6711
--- /dev/null
+++ b/packages/expand-region
@@ -0,0 +1 @@
+Subproject commit 59f67115263676de5345581216640019975c4fda