Add tree sitter plugin

conf/nvim/lua/plugins-options.lua

@@ -24,3 +24,7 @@ vim.g['grammalecte_cli_py'] = '/usr/bin/grammalecte-cli'
 
 -- Deoplete
 vim.g['deoplete#enable_at_startup'] = 1
+
+-- Tree sitter
+local ts = require 'nvim-treesitter.configs'
+ts.setup {ensure_installed = 'maintained', highlight = {enable = true}}

conf/nvim/lua/plugins.lua

@@ -21,4 +21,8 @@ paq  {
     'zchee/deoplete-jedi';
     -- Grammalecte
     'dpelle/vim-Grammalecte';
+    
+    -- need to install g++ package on Debian
+    -- for tree sitter plugins
+    'nvim-treesitter/nvim-treesitter'
 }