chore: tell Vercel not to build the gh-pages branch.

Author: jaywcjlove

.vercel/ignore-gh-pages.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Don't try to build the gh-pages branch.
+
+if [[ "$BRANCH" != "gh-pages" ]] ; then
+  # Proceed with the build
+  exit 1;
+else
+  # Don't build
+  exit 0;
+fi