Updated license

README.md

@@ -1,5 +1,5 @@
 ---
-license: cc-by-nc-3.0
+license: cc-by-4.0
 task_categories:
 - token-classification
 language:
@@ -26,7 +26,7 @@ This dataset contains named entities related to Distributed Ledger Technology (D
 - **Language(s) (NLP):** English
 - **Number of Entity:** 12
 - **Entity Types:** `Blockchain Name`, `Consensus`, `Identifiers`, `Security Privacy`, `ESG`, `Transaction Capabilities`, `ChargingAndRewardingSystem`, `Extensibility`, `Identity Management`, `Native Currency Tokenisation`, `Native Currency Tokenisation`, `Miscellaneous`
-- **License:** CC BY-NC 3.0
+- **License:** CC BY-NC 4.0
 
 
 ### Dataset Sources
@@ -132,4 +132,4 @@ For more details about the dataset creation process and its applications, please
 ```
 
 ## Contributions
-Thanks to [Ali Irzam Kathia](https://uk.linkedin.com/in/alikathia) for his contribution to labeling this dataset.
+Thanks to [Ali Irzam Kathia](https://uk.linkedin.com/in/alikathia) for his contribution to labeling this dataset.