Update docs to reference tags show-counts attribute

README.md

@@ -28,7 +28,7 @@ Your website files must include, at a minimum, a `src` directory with the follow
   - Your layout file can contain any CSS/HTML/Javascript you like.
   - Include a `<butterfly-content />` tag, which will be replaced with actual page content (post/page content, or the list of posts for the index page).
   - Include a `<butterfly-pages />` tag, which will be replaced with a list of links to the pages.
-  - Optionally include a `<butterfly-tags />` tag, which will be replaced with a list of tag links (and post count per tag).
+  - Optionally include a `<butterfly-tags />` tag, which will be replaced with a list of tag links. If you want to display the number of posts with each tag, use the `show-counts` attribute: `<butterfly-tags show-counts />`
 - A `posts` directory, with one markdown file per post.
   - The file name becomes the post name, and the markdown content becomes HTML.
   - The line`meta-tags: foo, bar, baz` tags a post with the tags `foo`, `bar`, and `baz`.