finished? please test

init.lua

@@ -471,7 +471,7 @@ require('lazy').setup({
 
           -- Jump to the type of the word under your cursor.
           --  Useful when you're not sure what type a variable is and you want to see
-          --  the definition of it's *type*, not where it was *defined*.
+          --  the definition of its *type*, not where it was *defined*.
           map('<leader>D', require('telescope.builtin').lsp_type_definitions, 'Type [D]efinition')
 
           -- Fuzzy find all the symbols in your current document.
@@ -502,6 +502,21 @@ require('lazy').setup({
           -- WARN: This is not Goto Definition, this is Goto Declaration.
           --  For example, in C this would take you to the header
           map('gD', vim.lsp.buf.declaration, '[G]oto [D]eclaration')
+
+          -- The following two autocommands are used to highlight references of the
+          -- word under your cursor when your cursor rests there for a little while.
+          --    See `:help CursorHold` for information about when this is executed
+          --
+          -- When you move your cursor, the highlights will be cleared (the second autocommand).
+          vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
+            buffer = event.buf,
+            callback = vim.lsp.buf.document_highlight,
+          })
+
+          vim.api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
+            buffer = event.buf,
+            callback = vim.lsp.buf.clear_references,
+          })
         end,
       })
 
@@ -526,7 +541,6 @@ require('lazy').setup({
         -- gopls = {},
         -- pyright = {},
         -- rust_analyzer = {},
-        -- html = { filetypes = { 'html', 'twig', 'hbs'} },
         -- ... etc. See `:help lspconfig-all` for a list of all the pre-configured LSPs
         --
         -- If you use something like typescript, where the tooling is as bad as the language,
@@ -568,7 +582,7 @@ require('lazy').setup({
         'stylua', -- Used to format lua code
       })
 
-      -- Ensure the servers above are installed
+      -- Ensure the servers and tools above are installed
       --  To check the current status of installed tools and/or manually install
       --  other tools, you can run
       --    :Mason
@@ -584,6 +598,9 @@ require('lazy').setup({
               cmd = server.cmd,
               settings = server.settings,
               filetypes = server.filetypes,
+              -- This handles overriding only values explicitly passed
+              -- by the server configuration above. Useful when disabling
+              -- certain features of an LSP (for example, turning off formatting for tsserver)
               capabilities = vim.tbl_deep_extend('force', {}, capabilities, server.capabilities or {}),
             }
           end,
@@ -611,18 +628,22 @@ require('lazy').setup({
       },
       'saadparwaiz1/cmp_luasnip',
 
-      -- Adds LSP completion capabilities
+      -- Adds other completion capabilities.
+      --  nvim-cmp does not ship with all sources by default. They are split
+      --  into multiple repos for maintenance purposes.
       'hrsh7th/cmp-nvim-lsp',
       'hrsh7th/cmp-path',
 
-      -- Adds a number of user-friendly snippets
-      'rafamadriz/friendly-snippets',
+      -- If you want to add a bunch of pre-configured snippets,
+      --    you can use this plugin to help you. It even has snippets
+      --    for various frameworks/libraries/etc. but you will have to
+      --    set up the ones that are useful for you.
+      -- 'rafamadriz/friendly-snippets',
     },
     config = function()
       -- See `:help cmp`
       local cmp = require 'cmp'
       local luasnip = require 'luasnip'
-      require('luasnip.loaders.from_vscode').lazy_load()
       luasnip.config.setup {}
 
       cmp.setup {
@@ -631,9 +652,8 @@ require('lazy').setup({
             luasnip.lsp_expand(args.body)
           end,
         },
-        completion = {
-          completeopt = 'menu,menuone,noinsert,noselect',
-        },
+        completion = { completeopt = 'menu,menuone,noinsert' },
+
         -- For an understanding of why these mappings were
         -- chosen, you will need to read `:help ins-completion`
         --
@@ -771,7 +791,7 @@ require('lazy').setup({
   -- init.lua. If you want these files, they are in the repository, so you can just download them and
   -- put them in the right spots if you want.
 
-  -- NOTE: Next Step on Your Neovim Journey: Add/Configure additional "" for kickstart
+  -- NOTE: Next Step on Your Neovim Journey: Add/Configure additional plugins for kickstart
   --       These are some example plugins that I've included in the kickstart repository.
   --       Uncomment any of the lines below to enable them.
   -- require 'kickstart.plugins.debug',