[fix 1320] code example has been rendered the {docsify-update} configuration.

Author: Koooooo-7

docs/write-a-plugin.md

@@ -87,7 +87,7 @@ window.$docsify = {
           editHtml +
           html +
           '\n----\n' +
-          'Last modified {docsify-updated} ' +
+          '{content}' +
           editHtml
         );
       });
@@ -108,4 +108,7 @@ Current version: <span id='tip-version'>loading</span>
 
 <script>
 document.getElementById('tip-version').innerText = Docsify.version
+// fix1320 replace the content to show the {docsify-ignore} example in case of being replaced in default.
+let text = document.getElementsByClassName("lang-js")[2].innerHTML.replace("{content}", "Last modified {docsify-update}")
+document.getElementsByClassName("lang-js")[2].innerHTML = text
 </script>