Fish shell introdution

Introduction to the fish shell, a modern customisable shell.

[rodelias]

Lots of good stuff! Thank you! Btw, 07:18 is pure gold 😅

[chenwang]

Hi, do you use fish as your default shell? I try fish and want to set it as the default. However, I find in official docs that setting fish as the default shell will cause some glitches.. Thank you.