Add fish 3 ppa

In order to have an up to date fish version.

Install/basic-install

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# Add PPA to have up to date programs
+sudo apt-add-repository ppa:fish-shell/release-3
+
 # Install basic programms
 sudo apt install htop tmux tree fish