Add nitpicks

Author: albrja

docs/nitpick-exceptions

@@ -23,4 +23,9 @@ py:class vivarium_cluster_tools.cli_tools.R
 py:class scpustats
 py:class sdiskio
 py:class scpufreq
-py:class snetio
+py:class snetio
+# layered_config_tree
+py:class layered_config_tree.main.LayeredConfigTree
+py:class LayeredConfigTree
+# vivarium
+py:class Component