diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -34,11 +34,44 @@ yarn add shareon
require('shareon');
```
-
+## Usage
+
+Create a container with class `shareon` and populate it with elements, whose
+classes match the names of social networks:
```html
+```
+
+By default the URL and the title of the page will be used in sharing dialogs.
+To change this, you can use the `data-url` and `data-title` attributes. Use them
+on the whole container or on the specific links:
+
+```html
+
+```
+
+Apart from the URL and title, some networks support extra parameters:
+
+- add `data-via` to a Twitter button to mention a user
+- add `data-text` to a WhatsApp or Telegram button to add custom message text
+- add `data-media` to a Pinterest button to customize the pinned picture
+
+Here are all the custom parameters in their glory:
+
+```html
+
+
Pin
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