plugin: add and configure toggleterm

- Add and configure the Toggleterm plugin to improve the use of terminal
  inside neovim.

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

init.vim

@@ -39,6 +39,7 @@ Plug 'junegunn/fzf.vim'                                                     " fz
 Plug 'stsewd/fzf-checkout.vim'                                              " Fuzzy search in git branches
 Plug 'ryanoasis/vim-devicons'                                               " Add icons to plugins
 Plug 'chrisbra/csv.vim'                                                     " To diplay and manage CSV files
+Plug 'akinsho/toggleterm.nvim', {'tag' : '2.*'}
 call plug#end()
 
 " Format indentation
@@ -89,6 +90,11 @@ autocmd FileType gitcommit setlocal spelllang=en
 " Path for grammalecte-cli to get grammar check in French
 let g:grammalecte_cli_py='/usr/bin/grammalecte-cli'
 
+" #########################################
+" #########################################
+" Status line options 
+set statusline^=%{coc#status()}
+
 " #########################################
 " #########################################
 " Fold
@@ -264,11 +270,12 @@ autocmd BufNewFile *.md 0r ~/.config/nvim/snippets/template.md
 " #########################################
 " Terminal: use zsh
 set shell=/usr/bin/zsh
+lua require("toggleterm").setup()
 
 " #########################################
 " #########################################
-" mkdnflow configuration 
-lua << EOF
+" mkdnflow configuration
+lua <<EOF
 require('mkdnflow').setup({
     -- Config goes here; leave blank for defaults
     links = {