Update README.md

Author: KainingYing

README.md

@@ -1,3 +1,5 @@
+# ⚠️⚠️⚠️ ALL split annotation is available at [here](https://github.com/OpenGVLab/MMT-Bench/releases/download/all_anno/MMT-Bench_ALL_MI_anno.tsv).
+
 # Best Practice
 
 Opencompass [VLMEevalKit](https://github.com/open-compass/VLMEvalKit) supports MMT-Bench now! **We strongly recommend using [VLMEevalKit](https://github.com/open-compass/VLMEvalKit) for its useful features and ready-to-use LVLM implementations**.
@@ -147,4 +149,4 @@ If you feel MMT-Bench useful in your project or research, please kindly use the
     archivePrefix={arXiv},
     primaryClass={cs.CV}
 }
-```
+```