Revert "feat: remove gitsigns"

This reverts commit 8b41395a0e.

docs/2023-05-03-neovim.html

@@ -269,6 +269,17 @@
           <li><code>U</code>: toggle hidden</li>
         </ul>
       </li>
+      <li>
+        <p>
+          With
+          <a href="https://github.com/lewis6991/gitsigns.nvim"
+            >lewis6991/gitsigns.nvim</a
+          >:
+        </p>
+        <ul>
+          <li><code>]c</code>, <code>[c</code>: next/previous git change</li>
+        </ul>
+      </li>
       <li>
         <p>
           With

posts/2023-05-03-neovim.md

@@ -133,6 +133,8 @@ Ground rules:
   - `c`: copy
   - `p`: paste
   - `U`: toggle hidden
+- With [lewis6991/gitsigns.nvim](https://github.com/lewis6991/gitsigns.nvim):
+  - `]c`, `[c`: next/previous git change
 - With [tpope/vim-projectionist](https://github.com/tpope/vim-projectionist)
   - `:A`: open alternate file
 - With [echasnovski/mini.nvim](https://github.com/echasnovski/mini.nvim)