nvim, replaced vim-exilir with nvim-treesitter

it because vim-elixir doesnt' have support for heex,
read more about it here

elixir-editors/vim-elixir#562

.config/nvim/init.vim

@@ -87,8 +87,10 @@ Plug 'stevearc/oil.nvim'
 "Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
 Plug 'nvim-tree/nvim-tree.lua'
 
+Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
+
 " elixir
-Plug 'elixir-editors/vim-elixir'
+"Plug 'elixir-editors/vim-elixir'
 Plug 'mhinz/vim-mix-format'
 "Plug 'slashmili/alchemist.vim'
 

.config/nvim/lua/init.lua

@@ -14,3 +14,12 @@ vim.keymap.set("n", "-", require("oil").open, { desc = "Open parent directory" }
 require("nvim-tree").setup()
 
 vim.keymap.set("n", "<leader>n", ':NvimTreeToggle<cr>', { desc = "open nvim tree" })
+
+require'nvim-treesitter.configs'.setup{
+  -- to install another one manually :TSInstall supported_language
+  ensure_installed = { "vim", "lua", "elixir", "heex" },
+
+  highlight={
+    enable=true
+  },
+}