This site presents a public rending engine for creating Galaxy Lab landing pages (known as the 'Welcome page' in Galaxy terms) from content hosted on GitHub.
Create a lab content directory like this:
.
├── base.yml
├── section_1.yml
├── section_2.yml
├── static
│ ├── custom.css
│ └── logo.svg
└── templates
├── conclusion.md
├── footer.md
└── intro.md
And then request your page anywhere like this:
To get a webpage like this.