diff --git a/demo/cmd.txt b/demo/cmd.txt
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--- /dev/null
+++ b/demo/cmd.txt
@@ -0,0 +1,18 @@
+# mkdir demo
+# cd demo
+# mkdir demo-git
+# cd demo-git
+# git init
+# git config --local user.name / user.email ...
+# cd ..
+
+echo real time prompt
+echo command running time cost prompt
+test command running error hint
+
+cd demo-git
+echo git status prompt
+touch test.txt
+git st
+git add -A
+git ci -m "test"
\ No newline at end of file
diff --git a/demo/demo.mov b/demo/demo.mov
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index 0000000..2def1e5
Binary files /dev/null and b/demo/demo.mov differ