[owners] Add a default OWNERS file to the oss_template

This OWNERS file will allow EngProd to enforce owners approvals on a
repo without a multistep process after repo creation.

BUG: b/223995166, b/223996332
Change-Id: I53ea4d543b559e6ad45928dcdb04b5968939ff33
Reviewed-on: https://turquoise-internal-review.googlesource.com/c/staging/oss_template/+/510574
Reviewed-by: James Robinson <jamesr@google.com>
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..1c4ea03
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,11 @@
+# Remove the `*` from this file and add specific owners to this file and to
+# subdirectories where appropriate to enforce OWNERS approval in this
+# repository.
+# More details about OWNERS in Fuchsia can be found at:
+# https://fuchsia.dev/fuchsia-src/development/source_code/owners
+# Syntax for OWNERS files can be found at:
+# https://fuchsia-review.googlesource.com/plugins/code-owners/Documentation/backend-find-owners.html#syntax