feat: nvim keymap more

docs/2023-05-03-neovim.html

@@ -138,6 +138,7 @@ vim.<span class="pl-smi">keymap</span>.<span class="pl-c1">set</span>(<span clas
           <li><code>x</code>: cut</li>
           <li><code>c</code>: copy</li>
           <li><code>p</code>: paste</li>
+          <li><code>U</code>: toggle hidden</li>
         </ul>
       </li>
       <li>

posts/2023-05-03-neovim.md

@@ -65,6 +65,7 @@ vim.keymap.set("n", "<leader>gdd", ":GoDeclsDir<CR>")
   - `x`: cut
   - `c`: copy
   - `p`: paste
+  - `U`: toggle hidden
 - With [lewis6991/gitsigns.nvim](https://github.com/lewis6991/gitsigns.nvim):
   - `]c`, `[c`: next/previous git change
 - With [echasnovski/mini.nvim](https://github.com/echasnovski/mini.nvim)