Fix descriptions of gitsigns keymappings (nvim-lua#1997)

* Fix descriptions of keymappings

* Fix capitalization

Author: Stattek

lua/kickstart/plugins/gitsigns.lua

@@ -108,11 +108,11 @@ return {
       map('n', '<leader>hb', function() gitsigns.blame_line { full = true } end, { desc = 'git [b]lame line' })
       map('n', '<leader>hd', gitsigns.diffthis, { desc = 'git [d]iff against index' })
       map('n', '<leader>hD', function() gitsigns.diffthis '@' end, { desc = 'git [D]iff against last commit' })
-      map('n', '<leader>hQ', function() gitsigns.setqflist 'all' end)
-      map('n', '<leader>hq', gitsigns.setqflist)
+      map('n', '<leader>hQ', function() gitsigns.setqflist 'all' end, { desc = 'git hunk [Q]uickfix list (all files in repo)' })
+      map('n', '<leader>hq', gitsigns.setqflist, { desc = 'git hunk [q]uickfix list (all changes in this file)' })
       -- Toggles
       map('n', '<leader>tb', gitsigns.toggle_current_line_blame, { desc = '[T]oggle git show [b]lame line' })
-      map('n', '<leader>tw', gitsigns.toggle_word_diff)
+      map('n', '<leader>tw', gitsigns.toggle_word_diff, { desc = '[T]oggle git intra-line [w]ord diff' })
 
       -- Text object
       map({ 'o', 'x' }, 'ih', gitsigns.select_hunk)