diff --git a/README.md b/README.md
index f02b454..e03dd5a 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ serverless microblogging for tilde.town
 `~nebula/bink`: show post list
 
 buttons used to navigate the list are similar to `less`. here are the keys you can use:
+* c: compose a new post in a text editor
+* r: refresh the list
 * space, page down: scroll down one whole screen
 * down arrow, n, j, ctrl-n: go down one line
 * up arrow, p, k, ctrl-p: go up one line