Add roles dir

diff --git a/ch13/ansible/roles/database b/ch13/ansible/roles/database
new file mode 120000 (symlink)
index 0000000..bfd2c38
--- /dev/null
+++ b/ch13/ansible/roles/database
@@ -0,0 +1 @@
+../../../ch08/playbooks/roles/database
\ No newline at end of file

diff --git a/ch13/ansible/roles/mezzanine b/ch13/ansible/roles/mezzanine
new file mode 120000 (symlink)
index 0000000..0fb1595
--- /dev/null
+++ b/ch13/ansible/roles/mezzanine
@@ -0,0 +1 @@
+../../../ch08/playbooks/roles/mezzanine
\ No newline at end of file