Update README with the SF20K competition

README.md

@@ -17,6 +17,10 @@ Ongoing Competitions:
 
 | Competition Name | Type                 | Deadline   | Organizer    | Prize |
 |------------------|:----------------------:|:------------:|:--------------:|:-------:|
+| [SF20K Competition (Main Track)](https://huggingface.co/spaces/SLoMO-Workshop/SF20KCompetition) | Vision | 2025-10-03 | [SLoMO ICCV 2025 Workshop](https://slomo-workshop.github.io/) | ✅ |
+|                  |                      |            |              |       |
+| [SF20K Competition (Special Track)](https://huggingface.co/spaces/SLoMO-Workshop/SF20KCompetitionConstrained) | Vision | 2025-10-03 | [SLoMO ICCV 2025 Workshop](https://slomo-workshop.github.io/) | ✅ |
+|                  |                      |            |              |       |
 | [RadNLP 2024 (English, main task)](https://huggingface.co/spaces/RadNLP/RadNLP2024_DryRun_English_MainTask)        | Text Classification | 2025-02-01 | [RadNLP 2024](https://sociocom.naist.jp/radnlp-2024/) |      |
 |                  |                      |            |              |       |
 | [RadNLP 2024 (English, sub task)](https://huggingface.co/spaces/RadNLP/RadNLP2024_DryRun_English_SubTask)        | Text Classification | 2025-02-01 | [RadNLP 2024](https://sociocom.naist.jp/radnlp-2024/) |      |