Where to add this?

[uuc110]

I'm very new to this so please tell me how to configure my emacs like this?

and where to add tihs? text

" (eval-after-load 'inf-ruby '(define-key inf-ruby-minor-mode-map (kbd "C-c C-s") 'inf-ruby-console-auto)) "

I successfully installed inf-ruby using M-x inf-ruby, and can i really turn my emacs like that image shown above

[dgutov]

The instructions refer to init.el (see Emacs' documentation).

But the screenshot has nothing to do with them: it showcases the functionality of https://github.com/dgutov/robe.

[uuc110]

is it still under working condition when i used M-x robe it said directory not found or niehter found its package to install or EMPL

[uuc110]

I added this way? is this correct way? if not then how?

[dgutov]

It's a MELPA package. First you need to add the main MELPA archive to the list of sources, then refresh it, and then install.

https://melpa.org/#/getting-started