add link

IT/Soft_util.md

@@ -3,3 +3,17 @@
 ## tunelling
 
 [chisel](https://github.com/jpillora/chisel) permet de mettre en place un tunel TCP sur du http
+
+
+## site
+
+[devhind (cheatsheet)](https://devhints.io/)
+
+[Lean X in Y minutes](https://learnxinyminutes.com/)
+
+
+[online Json editor](https://jsoneditoronline.org/)
+
+[compression d'image](https://squoosh.app/)
+
+

IT/linux/cron.md

@@ -10,7 +10,7 @@
  # │ └──────────────────── hour (0 - 23)
  # └───────────────────────── min (0 - 59)
  ```
-
+[test cron](https://crontab.guru/)
  See also
  - [wikipedia/cron](http://en.wikipedia.org/wiki/Cron)
 
@@ -46,4 +46,4 @@ $ sudo crontab -e
 
 ## user crontab lcation 
 
-`/var/spool/cron/crontabs`
+`/var/spool/cron/crontabs`

IT/tmux.md

@@ -4,6 +4,11 @@
 
 personal config [Here](https://git.ducamps.win/vincent/conf2/src/branch/master/tmux/.tmux.conf)
 
+## copy in remote clipboard
+
+shift+select to use remote selection clipboard
+
+
 ## command
 
 command | comportment