Update README.md

README.md

@@ -56,7 +56,7 @@ In order to fully evaluate the model's performance, we examined Ring-lite-distil
 | Ring-lite-distill-preview |      75.3 | 81.3 | 63.0 | 63.3 |
 
 </div>
-More details will be reported in our technical report. [TBD]
+More details will be reported in our [technical report](https://github.com/inclusionAI/Ring/blob/main/Ring_Lite_Distill_Preview.pdf).
 
 ## Quickstart