Update README.md

README.md

@@ -6169,12 +6169,14 @@ January 1, 2024 version of [PanLex Language Vocabulary](https://vocab.panlex.org
 
 # Columns
 - `vocab`: contains the text entry.  
-- `639-3`: contains the ISO 639-3 languages tags to allow users to filter on the language(s) of their choice.  
-- `var_code`: contains a code to differentiate language variants. In practice, this is the code 639-3 + a number.  If 0, it corresponds to the classic 639-3, if the number is different, it corresponds to a variant (e.g. `fra-6` corresponds to Québécois according to [https://vocab.panlex.org/fra-006](https://vocab.panlex.org/fra-006)).  PanLex does not provide a dictionary to find out what it corresponds to. 
-- `english_name`: English language name.
+- `639-3`: contains the ISO 639-3 languages tags to allow users to filter on the language(s) of their choice.
+- `639-3_english_name`: the English language name associated to the code ISO 639-3. 
+- `var_code`: contains a code to differentiate language variants. In practice, this is the code 639-3 + a number.  If 000, it corresponds to the classic 639-3, if the number is different, it corresponds to a variant (e.g. `fra-006` corresponds to Québécois according to [https://vocab.panlex.org/fra-006](https://vocab.panlex.org/fra-006)). This is a code created by Panlex, and therefore does not follow an international standard. 
+- `english_name_var :` the English language name associated to the `var_code`. 
+
 
 # Source
-Readers are invited to consult the [https://panlex.org/source-list/](https://panlex.org/source-list/ ) page, which summarizes all the sources.
+Readers are invited to consult the [https://panlex.org/source-list/](https://panlex.org/source-list/) page, which summarizes all the sources.
 
 # Citation
 > Kamholz, David, Jonathan Pool, and Susan M. Colowick. 2014.