Denoise-paired in community AMI

@akknight216: Just curious --- did you find the documentation pages via a Google/Bing/Yahoo search? If so, it does look like those major search engines have cached old versions of our documentation. For now your best bet is to visit https://docs.qiime2.org directly and use the built-in search (we know that search isn't the best, but it guarantees up-to-date docs). Visiting the docs site directly should always load the latest version of the docs, and if you want to view older versions, use the selector on the left (see this post for details). We are considering our options for handling search engine optimization for future releases of QIIME 2. Thanks!