added support for null-ls.nvim plugin

nvim/.config/nvim/lua/user/packer.lua

@@ -9,7 +9,7 @@ return require('packer').startup(function(use)
     -- Fuzzy finder
     use {
         'nvim-telescope/telescope.nvim', tag = '0.1.0',
-        requires = { {'nvim-lua/plenary.nvim'} }
+        requires = { { 'nvim-lua/plenary.nvim' } }
     }
 
     -- Treesitter for better highlighting
@@ -29,26 +29,28 @@ return require('packer').startup(function(use)
 
     -- LSP
     use {
-        {'williamboman/mason.nvim'},
+        { 'williamboman/mason.nvim' },
-        {'williamboman/mason-lspconfig.nvim'},
+        { 'williamboman/mason-lspconfig.nvim' },
-        {'neovim/nvim-lspconfig'},
+        { 'neovim/nvim-lspconfig' },
     }
     -- Autocomplete
     use {
         'hrsh7th/nvim-cmp',
         requires = {
-            {'hrsh7th/cmp-nvim-lsp'},
+            { 'hrsh7th/cmp-nvim-lsp' },
-            {'hrsh7th/cmp-buffer'},
+            { 'hrsh7th/cmp-buffer' },
-            {'hrsh7th/cmp-path'},
+            { 'hrsh7th/cmp-path' },
-            {'hrsh7th/cmp-cmdline'},
+            { 'hrsh7th/cmp-cmdline' },
-            {'L3MON4D3/LuaSnip',
+            { 'L3MON4D3/LuaSnip',
-            requires = {
+                requires = {
-                {'rafamadriz/friendly-snippets'}
+                    { 'rafamadriz/friendly-snippets' }
-            }
+                }
-        },
+            },
-        {'saadparwaiz1/cmp_luasnip'},
+            { 'saadparwaiz1/cmp_luasnip' },
+        }
     }
-}
+
+    -- other LSP actions
+    use { 'jose-elias-alvarez/null-ls.nvim' }
 
 end)
-