From 0c3d06d3f2a7caf6640d83db361f6de444d717dc Mon Sep 17 00:00:00 2001
From: Dave Tang <davetingpongtang@gmail.com>
Date: Tue, 23 Jun 2026 15:23:59 +0900
Subject: Copy-to-Clipboard Button

---
 README.md | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'README.md')

diff --git a/README.md b/README.md
index 4b32e46..d3c1bcc 100644
--- a/README.md
+++ b/README.md
@@ -92,6 +92,34 @@ curl -L "https://cdn.jsdelivr.net/npm/prismjs@1/components/prism-javascript.min.
 
 Then add each `<script>` tag for these files to `index.html` (see Step 3).
 
+### Optional: Copy-to-Clipboard Button
+
+To add a **copy** button to every fenced code block, download the
+[docsify-copy-code](https://github.com/jperasmus/docsify-copy-code) plugin. As with
+the assets above, it is fetched once and served locally thereafter:
+
+```bash
+# Copy-to-clipboard plugin
+curl -L "https://cdn.jsdelivr.net/npm/docsify-copy-code@3/dist/docsify-copy-code.min.js" \
+  -o assets/js/docsify-copy-code.min.js
+```
+
+The plugin injects its own CSS via JavaScript, so there is **no separate CSS file**
+to download. Just add its `<script>` tag to `index.html` **after** `docsify.min.js`
+(see Step 3). Copying uses `document.execCommand('copy')`, so it works over plain
+`http://` as well as `https://`.
+
+It works with no configuration. To customise the button labels, add a `copyCode`
+block to the `window.$docsify` object in `index.html`:
+
+```js
+copyCode: {
+  buttonText: 'Copy to clipboard',
+  errorText: 'Error',
+  successText: 'Copied'
+}
+```
+
 ---
 
 ## Step 3: Create `index.html`
@@ -121,6 +149,9 @@ Create `index.html`:
   <script src="assets/js/docsify.min.js"></script>
   <script src="assets/js/search.min.js"></script>
 
+  <!-- Remove the line below if you did not download the copy-code plugin -->
+  <script src="assets/js/docsify-copy-code.min.js"></script>
+
   <!-- Remove the lines below if you did not download Prism -->
   <script src="assets/js/prism-core.min.js"></script>
   <script src="assets/js/prism-bash.min.js"></script>
-- 
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