Add testimonials (#160)

README.md

@@ -185,6 +185,12 @@ You can open **weekly notes** in 2 ways: searching `Calendar: open weekly note`
 | `title` | Works the same as the daily note `{{title}}`. It will insert the title of the note |
 | `date`, `time` | Works the same as the daily note `{{date}}` and `{{time}}`. It will insert the date and time of the first day of the week. Useful for creating a heading (e.g. `# # {{date:gggg [Week] ww}}`). |
 
+## See it in action
+
+- [Nick Milo provides a nice plugin walkthrough](https://www.youtube.com/watch?v=X61wRmfZU8Y&t=1099s)
+- [Santi Younger demos how Calendar + Periodic Notes can be used for weekly review](https://www.youtube.com/watch?v=T9y8JABS9_Q)
+- [Filipe Donadio uses the calendar to plan his day](https://www.youtube.com/watch?v=hxf3_dXIcqc)
+
 ## Say Thanks 🙏
 
 If you like this plugin and would like to buy me a coffee, you can!