diff --git a/10 Notes/Short Introduction to Obsidian.md b/10 Notes/Short Introduction to Obsidian.md
index f9dceb2..0d8f76e 100644
--- a/10 Notes/Short Introduction to Obsidian.md	
+++ b/10 Notes/Short Introduction to Obsidian.md	
@@ -1,4 +1,4 @@
-Here a short intro to Obsidian and *Personal Knowledge Management Systems*. 
+Here a short intro to [Obsidian](https://obsidian.md) and *Personal Knowledge Management Systems*. 
 
 I currently, document some of the Codex/BitTorrent stuff in the vault you already can use to see how does it feel for you. The vault is available on GitHub: [https://github.com/codex-storage/bittorrent-codex-docs](https://github.com/codex-storage/bittorrent-codex-docs). You can just clone the rero, and open the cloned folder in Obsidian. That's it. This is you local copy - anything you do is only visible to you. GitHub is used for a more controlled syncing. Normally, when you work on your own content, you will put your vault on some shared network drive (end-to-end encrypted of course! :yum:  ), and then you can conveniently open it on any other device. Syncing is done by the network drive, Obsidian has nothing to do with it in this case. You content keeps the same structure (including folders) as you see it in your local (shared) folder - thus, everything is transparent and extremely portable. Myself, I have a paid subscription to Obsidian Sync service (not that I really need it, but I wanted to try it and to support the Obsidian team a bit). It costs me $96,00 per year: