* leading paragraphs don't need <p>/</p> tags
* all subequent paragraphs need <p> *and* </p> tags
* <p> and </p> tags are on the same lines as the content
* paragraphs end with an end-of-sentence symbol
* a pararaph is always surronded by two empty lines
* move <ul> blocks out of <p> blocks

Other changes:

* remove <code> tags when they don't contain code
* fix capitalization of feature names (they're no proper nouns)
* probably more that I forgot