Hello and thanks for your interest in this project.
First, you should go to [login to view URL]
That site, in fact, is the result of a crawler app written in Java, which fetches JavaScript API informations directly from the W3C.
After having an idea of what it is, go to [login to view URL] and download the java source for the crawler.
Next, the output of this crawler should be reformatted (in the crawler itself) to match the template for new blocks in Blockly.
FYI, Blockly is a Scratch-like programming environment (mainly used for education), which produces code in various languages.
I'm only interested in JavaScript.
You can download the Blockly source code here: [login to view URL] and here is the custom block creation tutorial: [login to view URL]
Finally, the resulting source code of both the crawler and the augmented Blockly, should be returned to me, in order to put them on GitHub.
Let me know =)