init.vim: add a minimal configuration

For debugging purpose, I use a minimal neovim configuration that helps
me identify confirguration errors.

Co-Authored-by: Igor Milhit <igor@milhit.ch>

minimal-init.vim

@@ -0,0 +1,31 @@
+" plugins (vim-plug)
+call plug#begin('~/.config/nvim/plugged')
+Plug 'arcticicestudio/nord-vim'                     " Nord color scheme
+Plug 'sheerun/vim-polyglot'
+Plug 'tpope/vim-sensible'                           " default settings
+Plug 'vim-pandoc/vim-pandoc'                        " pandoc support 
+Plug 'vim-pandoc/vim-pandoc-syntax'                 " markdown syntax support 
+Plug 'vim-airline/vim-airline'
+Plug 'vim-airline/vim-airline-themes'
+call plug#end()
+
+" Filetype detection
+filetype plugin on
+
+" Format indentation
+if has("autocmd")
+  filetype plugin indent on
+endif
+
+" Pandoc
+let g:pandoc#formatting#mode = "hA"
+
+" airline
+let g:airline_powerline_fonts = 1
+let g:airline#extensions#wordcount#filetypes = 'pandoc\|text\|' "Add support when pandoc is activated
+let g:airline_theme='nord'
+
+" Syntax coloration and color theme
+syntax enable
+set background=dark
+colorscheme nord