use-package- not found

I ran into this problem when I tried using this with emacs-26.1. I'm documenting the fix I applied.

You need to change these lines in `elisp/base.el `

```
(add-to-list 'package-archives
'("melpa" . "http://melpa.org/packages/"))

(add-to-list 'package-archives
'("elpy" . "http://jorgenschaefer.github.io/packages/"))

(when (not package-archive-contents)
(package-refresh-contents))

(unless (package-installed-p 'use-package)
(package-refresh-contents)
(package-install 'use-package))
```