Securing external links.

[PAPERPANKS]

• Using rel="noopener noreferrer" in <a>...</a> tags.

I have read an article on Medium about vulnerabilities of using target="_blank" alone in <a>...</a> .
Here is the link to the article.

• Removing Protocol Relative URL

Using <a href="//example.com">...</a> when linking pages and assets. It automatically switch to HTTPS if assets is available on it.
Read this topic in detail here.

@scottgarner I wish to contribute myself to handle the above issues as a GSOC project. Guide me on how to begin and get accepted for the project,
This issue is in reference to project Updated hello.p5js.org site listed for GSOC.