#1555501: document plistlib and move it to the general library.
diff --git a/Doc/library/fileformats.rst b/Doc/library/fileformats.rst
index c0c2eed..d2f0639 100644
--- a/Doc/library/fileformats.rst
+++ b/Doc/library/fileformats.rst
@@ -16,3 +16,4 @@
    robotparser.rst
    netrc.rst
    xdrlib.rst
+   plistlib.rst