Add Arxiv link and Citation (#4)

- Add Arxiv link and Citation (e477e1b1257efba699e3f0c639af3459c8aacde7)


Co-authored-by: WangJianing <[email protected]>

README.md

@@ -38,7 +38,7 @@ tags:
 </div>
 
 <p align="center">
-  <a href="https://github.com/meituan-longcat/LongCat-Flash-Thinking/blob/main/tech_report.pdf"><b>Tech Report</b>&nbsp;📄</a>
+  <a href="https://arxiv.org/abs/2509.18883"><b>Tech Report</b>&nbsp;📄</a>
 </p>
 
 
@@ -77,7 +77,7 @@ After high-value query selection, we synthesize corresponding high-quality
 solution trajectories based on a versatile environment with diverse tool APIs,
 including MCP servers and simulated tools for both single and multi-turn interactions.
 
-For more details, please refer to the comprehensive [**LongCat-Flash-Thinking Technical Report**](https://github.com/meituan-longcat/LongCat-Flash-Thinking/blob/main/tech_report.pdf).
+For more details, please refer to the comprehensive [**LongCat-Flash-Thinking Technical Report**](https://arxiv.org/abs/2509.18883).
 
 
 ## Evaluation Results
@@ -210,7 +210,7 @@ Please reason step by step, and put your final answer within \\boxed{}. /think_o
 
 #### Formal Reasoning
 
-LongCat-Flash-Thinking also support formal reasoning, like automatic theorem proving (ATP). The specific template is:
+LongCat-Flash-Thinking also supports formal reasoning, like automatic theorem proving (ATP). The specific template is:
 
 ```text
 [Round 0] USER:Think about and solve the following problem step by step in Lean 4.
@@ -245,6 +245,20 @@ It is the responsibility of developers and downstream users to understand and co
 
 Nothing in this Model Card should be interpreted as altering or restricting the terms of the MIT License under which the model is released. 
 
+## Citation
+We kindly encourage citation of our work if you find it useful.
+
+```
+@misc{meituan2025longcatflashthinkingtechnicalreport, 
+    title={LongCat-Flash-Thinking Technical Report}, 
+    author={Meituan}, 
+    year={2025}, 
+    eprint={2509.18883}, 
+    archivePrefix={arXiv}, 
+    primaryClass={cs.AI}, 
+    url={https://arxiv.org/abs/2509.18883}, 
+}
+```
 
 ## Contact
 Please contact us at <a href="mailto:[email protected]">[email protected]</a> or join our WeChat Group if you have any questions.