Add TODO for CLI and adapter tests

Signed-off-by: martin f. krafft <madduck@madduck.net>
diff --git a/TODO b/TODO
index 650475e..25451f0 100644
--- a/TODO
+++ b/TODO
@@ -4,6 +4,7 @@
 - Puppet adapter, whoever might want that…???
 - Tests for outputters
 - Improve testing of yaml_fs, maybe with more realistic examples
+- Tests for CLI and adapters
 - Configurable file extension (.yaml/.yml, or support both)
 - Variable interpolation
 - Verbosity options, debugging