Add sample option for persistent and update option description

Description for lowerOnStart was missing.

1 files changed, 8 insertions, 0 deletions

diff --git a/readme.md b/readme.md
index 5fba067..6fb6ef2 100644
--- a/readme.md
+++ b/readme.md
@@ -221,6 +221,14 @@ Other configuration options:
 
 :         position = Top
 
+`lowerOnStart`
+:     When True the window is initially hidden (can be toggled)
+
+`persistent`
+:     When True the window status is fixed i.e. hiding or revealing is not
+      possible. This option can be toggled at runtime.
+
+
 `border`
 :     TopB, TopBM, BottomB, BottomBM, FullB, FullBM or NoBorder (default).