beginRaw and endRaw example code does not work

Issue description

The example code for beginRaw and endRaw does not work. Those functions are not available for the default renderer.

I'm happy to make a PR for this but someone needs to tell me which file to edit. Is the reference documentation generated from XML files or is that old code and data?

URL(s) of affected page(s)

https://processing.org/reference/beginRaw_.html
https://processing.org/reference/endRaw_.html

Proposed fix

Add P2D to the setup() function like this:

void setup() {
   size(400, 400, P2D);
   beginRaw(PDF, "raw.pdf");
}

Start with the affected reference pages, beginRaw_.html and endRaw_.html, and trace them to the source for their examples. Confirm how the Processing website stores reference documentation, then update both examples to include P2D and verify that the displayed code matches the proposed working setup.