Add Gbl Git blame command

Author: kojdm

lua/keymaps.lua

@@ -51,4 +51,9 @@ vim.api.nvim_create_autocmd('TextYankPost', {
   end,
 })
 
+-- [[ User Commands ]]
+
+-- ':Gbl' - Git blame
+vim.api.nvim_create_user_command('Gbl', 'Git blame', { nargs = 0 })
+
 -- vim: ts=2 sts=2 sw=2 et