Switch color scheme plugin.

The previous plugin seemed to be broken for some reason, so I had to
switch to something that works.

init.vim

@@ -17,7 +17,7 @@ Plug 'danro/rename.vim'
 Plug 'ciaranm/detectindent'
 Plug 'jiangmiao/auto-pairs'
 Plug 'antoyo/vim-licenses'
-Plug 'altercation/vim-colors-solarized'
+Plug 'lifepillar/vim-solarized8'
 Plug 'neoclide/coc.nvim', {'branch': 'release'}
 call plug#end()
 filetype plugin indent on
@@ -83,7 +83,7 @@ nmap <silent> ]f <Plug>(coc-fix-current)
 " syntax highlighting
 syntax on
 set background=dark
-colorscheme solarized
+colorscheme solarized8
 highlight Normal ctermbg=none
 
 """ Project-Specific Settings