README with status

quad2/README.md

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+### project status 220808
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+Whereas `quad` compiles directly to PDF, `quad2` compiles to an intermediate drawing language, the output of which is passed to a renderer. 
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+Toy text and bitmap renderers were made. They are not good for much.
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+* The next goal is to stub out a PDF renderer ...
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+* But first, it turns out that it would be useful to have a renderer that can show layouts in a quicker, more debuggable way. The best idea seems like making an HTML renderer, since it can demonstrate any PDF layout (plus the possibility of embedding debug information in page popups etc)
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+* Once these two renderers are stubbed out, we can go back and start working on layout operations for text.