update ubuntu_irc and stackexchange size information

README.md

@@ -51,9 +51,9 @@ We further highlight the importance of mixing the datasets together with the rig
 | USPTO           | 45 GB         | 4.95B       | Q3 2024                  |
 | PG-19           | 11 GB         | 2.63B       | -                        |
 | HackerNews      | 4.2 GB        | 1.05B       | Q4 2023                  |
-| Ubuntu IRC      | 4.7 GB        | 1.54B       | Q3 2024                  |
+| Ubuntu IRC      | 6 GB        | 1.89B       | Q3 2024                  |
 | Europarl        | 6.1 GB        | 1.96B       | -                        |
-| StackExchange   | 79 GB         | 27.0B       | Q4 2023                  |
+| StackExchange   | 81 GB         | 27.76B       | Q4 2023                  |
 
 The [TxT360](https://huggingface.co/spaces/LLM360/TxT360) blog post provides all the details behind how we approached and implemented the following features: