Document importlib.machinery.PathFinder.
diff --git a/Lib/importlib/NOTES b/Lib/importlib/NOTES
index 22e4d05..bdbedec 100644
--- a/Lib/importlib/NOTES
+++ b/Lib/importlib/NOTES
@@ -52,7 +52,6 @@
   + machinery
 
       - (?) Chained path hook/finder
-      - (?) FileFinder
       - Extensions importers
 
           * ExtensionFinder
@@ -65,6 +64,11 @@
 
       - PathFinder
 
+* Make sure that there is documentation *somewhere* fully explaining the
+semantics of import that can be referenced from the package's documentation
+(even if it is in the package documentation itself, although it might be best
+in the language specification).
+
 * Write benchmark suite.
 
 * OPTIMIZE!