minor neovim changes - I think it's ready to roll

.config/nvim/lua/plugins.lua

@@ -1,11 +1,12 @@
 -- Load plugins
--- Bootstrap packer if needed
+-- Bootstrap packer if needed {
 local fn = vim.fn
 local install_path = fn.stdpath('data')..'/site/pack/packer/start/packer.nvim'
 if fn.empty(fn.glob(install_path)) > 0 then
    fn.system({'git', 'clone', '--depth', '1', 'https://github.com/wbthomason/packer.nvim', install_path})
    vim.cmd 'packadd packer.nvim'
 end
+-- }
 
 return require('packer').startup(function()
    -- Packer
@@ -88,13 +89,12 @@ return require('packer').startup(function()
    }
    use {                                           -- ALE: Support for lots of linters, etc
       'dense-analysis/ale',
-      ft = {'sh', 'zsh', 'bash', 'c', 'cc', 'cpp', 'cmake', 'html', 'markdown', 'racket', 'vim', 'tex'},
+      ft = {'sh', 'zsh', 'bash', 'cmake', 'html', 'markdown', 'racket', 'vim', 'tex'},
       config = function()
          vim.g.ale_disable_lsp = 1
       end
    }
 
-
    ---- Other IDE features
    use {                                           -- git integration
       'lewis6991/gitsigns.nvim',
@@ -133,6 +133,10 @@ return require('packer').startup(function()
    -- Conveniences
    use {                                           -- Undo tree
       'mbbill/undotree',
+      config = function()
+         vim.cmd 'nnoremap <F5> <cmd>UndotreeToggle<CR>'
+         vim.api.nvim_set_keymap("n", "<F5>", "<cmd>UndotreeToggle<CR>", { noremap = true, silent = true, })
+      end
    }
    use {                                           -- Quote pairing
       'jiangmiao/auto-pairs'