line-numbers.patch

diff --git a/public/tmpl.html b/public/tmpl.html
index f238925..56a40be 100644
--- a/public/tmpl.html
+++ b/public/tmpl.html
@@ -7,6 +7,7 @@
     <title>Paste {{.Title}}</title>
     <link rel="stylesheet" href="/output.css">
     <script src="/highlightjs/v11.11.1/highlight.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.9.0/highlightjs-line-numbers.min.js"></script>
     <link rel="stylesheet" href="/highlightjs/v11.11.1/stackoverflow-dark.min.css">
     <script src="/marked/v16.2.1/marked.umd.js"></script>
 </head>
@@ -379,6 +380,7 @@
                     }
                     // Fallback to auto highlighting if no specific language detected
                     hljs.highlightElement(contentElement);
+                    hljs.lineNumbersBlock(contentElement);
                 } else {
                     // Ensure no leftover highlighting styles when turned off
                     contentElement.removeAttribute('data-highlighted');