diff --git a/Makefile b/Makefile
index 3f46f27..5db0a30 100644
--- a/Makefile
+++ b/Makefile
@@ -43,4 +43,4 @@ rsc: $(GEN_RSC)
 
 clean:
 	rm -f $(HTML) checksums.json
-	make -C contrib clean
+	make -C contrib/ clean
diff --git a/README.d/01-download-certs.avif b/README.d/01-download-certs.avif
index d41ca05..0532ec3 100644
Binary files a/README.d/01-download-certs.avif and b/README.d/01-download-certs.avif differ
diff --git a/README.d/07-edit-global-config-overlay.avif b/README.d/07-edit-global-config-overlay.avif
index f87fda8..b6f8e31 100644
Binary files a/README.d/07-edit-global-config-overlay.avif and b/README.d/07-edit-global-config-overlay.avif differ
diff --git a/README.d/09-update-scripts.avif b/README.d/09-update-scripts.avif
index f549fef..a31d60b 100644
Binary files a/README.d/09-update-scripts.avif and b/README.d/09-update-scripts.avif differ
diff --git a/general/clipboard.js b/general/clipboard.js
index 9324be8..30c3134 100644
--- a/general/clipboard.js
+++ b/general/clipboard.js
@@ -1,8 +1,8 @@
 /* copy code to clipboard */
-function CopyToClipboard(pre) {
-  pre.style.filter = 'invert(1)';
-  navigator.clipboard.writeText(pre.firstElementChild.innerHTML);
+function CopyToClipboard(element) {
+  element.style.filter = 'invert(1)';
+  navigator.clipboard.writeText(element.firstElementChild.innerHTML);
   setTimeout(function() {
-    pre.style.filter = 'invert(0)';
+    element.style.filter = 'invert(0)';
   }, 100);
 }