diff --git a/README.md b/README.md
index 4beb5e3..5362d0b 100644
--- a/README.md
+++ b/README.md
@@ -11,16 +11,22 @@ $ gst projects
   - List of projects
 $ gst tasks [--project|-p] 11 [--last|-l]
   - List of tasks, if -pr grouped per projects else just last open tasks
-$ gst stamps [--project|-p] [--last|-l]
-  - List last stamps and status (open, closed...), like a summary
+```
+
+```sh
 $ gst addtask [--project|-p] 11 -t "Task title"
   - Add a task to a project
-$ gst stamp --start -t 212 -d "stamp description"
+```
+
+```sh
+$ gst stamps [--project|-p] [--last|-l]
+  - List last stamps and status (open, closed...), like a summary
+$ gst stamp --start -t 212 -d "stamp description" --dstart "20210101.." --dend "20210101.."
   - Add new stamp to the task 212
 $ gst stamp --stop
   - Stop the last open stamp
-$ gst stamp --description "Task description"
-  - Add description to last stamp
+$ gst stamp --update -d "stamp description" --dstart "20210101.." --dend "20210101.."
+  - Update last stamp
 ```
 
 ## Why Rust?