I counted 20 in the body of the README's Render function. I count it as one line if the block is a single line that uses a simple test to execute conditionally

I counted 20 in the body of the README's Render function. I count it as one line if the block is a single line that uses a simple test to execute conditionally (for/if). Once you understand the algorithm, it's conceptually even simpler than 20 lines.