Add ncurses dev packages to install instructions

Hi there,

First of all, thanks for writing this! I've added it to my .bashrc so I get a new tree every time I open my terminal 😄

I noticed in a Hacker News comment by fuball63 that when installing cbonsai on Ubuntu they also had to install libncurses-dev:

sudo apt install libncurses-dev

I'm on Fedora, and I had to install ncurses-devel for it to install:

sudo dnf install ncurses-devel

Would you consider adding these commands to your install instructions? Thanks!