docs: document data-class usage

1 files changed, 3 insertions, 3 deletions

diff --git a/README.md b/README.md
index fbc10d6..806ac4a 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ This is a fork of the [original project](https://github.com/capjamesg/hovercard.
 
 ## Getting Started
 
-The `hovercard.js` script searches for all `<a>` tags enclosed within an `<article>` tag on a web page. Mouse hover and focus listeners are added to each link. When the mouse hovers over a link, `hovercard.js` looks for the `href` value of the link in a JSON object called `hovercards`. If the link is found in the JSON object, a hovercard is added directly below the link on the page.
+The `hovercard.js` script searches for all `<a>` tags enclosed within the tags marked with a specified class on a web page. Mouse hover and focus listeners are added to each link. When the mouse hovers over a link, `hovercard.js` looks for the `href` value of the link in a JSON object called `hovercards`. If the link is found in the JSON object, a hovercard is added directly below the link on the page.
 
 When a user hovers off the link or moves focus onto another element (i.e. by using the keyboard to navigate links on the page), the hovercard will disappear.
 
@@ -18,9 +18,9 @@ When a user hovers off the link or moves focus onto another element (i.e. by usi
 
 To use the hovercard script, first download a copy and upload it to your site. Then, add this code above the closing `</body>` tag on your web page:
     
-    <script src="./path/to/hovercard.js"></script>
+    <script src="./path/to/hovercard.js" data-class="use-hovercards"></script>
 
-Substitute the path of the script in the example above with the location of the script on your site.
+Substitute the path of the script in the example above with the location of the script on your site, and `"use-hovercards"` with any class name to your liking. If the `data-class` part is omitted, the script will look in the `"content"` class by default.
 
 ## Roadmap