Update README.md

README.md

@@ -77,7 +77,8 @@ load_dataset("clips/mfaq", "en")
 | Croatian   | hr  | 5,215     | 819       |
 
 ## Data Fields
-The dataset is organized by page. Each page contains a list of questions and answers. You can also retrieve a flattened representation (see the next section).
+#### Nested (per page - default)
+The data is organized by page. Each page contains a list of questions and answers.
 - **id** 
 - **language**
 - **num_pairs**: the number of FAQs on the page
@@ -87,8 +88,14 @@ The dataset is organized by page. Each page contains a list of questions and ans
   - **answer**
   - **language**
   
-## Flat Representation
-You can access the flat version of any language by appending `_flat` to the configuration (e.g. `en_flat`). The data will be returned pair-by-pair instead of page-by-page. 
+#### Flattened
+The data is organized by pair (i.e. pages are flattened). You can access the flat version of any language by appending `_flat` to the configuration (e.g. `en_flat`). The data will be returned pair-by-pair instead of page-by-page. 
+- **id** 
+- **language**
+- **num_pairs**: the number of FAQs on the page
+- **domain**: source web domain of the FAQs
+- **question**
+- **answer**
 
 ## Source Data