ci.nix: fix usage

1 files changed, 1 insertions, 1 deletions

diff --git a/ci.nix b/ci.nix
index 6f4b89b08..631c3dc41 100644
--- a/ci.nix
+++ b/ci.nix
@@ -1,4 +1,4 @@
-# usage: nix-instantiate --eval --strict --json ./ci.nix
+# usage: nix-instantiate --eval --json --read-write-mode --strict ci.nix | jq .
 with import ./lib;
 let
   pkgs = import <nixpkgs> { overlays = [ (import ./submodules/nix-writers/pkgs) ]; };