Design page in document is throwing a product not found exception

The design page that is written in markdown is throwing a product not found exception causing the entire PF.org site to crash. This appears to be caused by the use of the {product-title} in the [design-guidelines.md](https://github.com/patternfly/patternfly-quickstarts/blob/main/packages/module/patternfly-docs/content/extensions/quick-starts/design-guidelines/design-guidelines.md) file. 