track default config

diff --git a/etc/nginx/sites-enabled/default b/etc/nginx/sites-enabled/default
new file mode 120000 (symlink)
index 0000000..ad35b83
--- /dev/null
+++ b/etc/nginx/sites-enabled/default
@@ -0,0 +1 @@
+/etc/nginx/sites-available/default
\ No newline at end of file