diff --git a/README.md b/README.md
index 1e413a5..9dfee90 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,9 @@ Interactive `.gitignore` generator
 
 ### Tips
 
-Install [`diff-so-fancy`](https://github.com/so-fancy/diff-so-fancy) for better quality of diff result.
+- You can quit full screen preview by enter `q` and continue browsing.
+- Install [`diff-so-fancy`](https://github.com/so-fancy/diff-so-fancy) for better quality of diff output.
+- `GI` works like `gi` but will **append** contents to `.gitignore` directly.
 
 ## License