Update README.md

Author: zxlzr

README.md

@@ -270,7 +270,7 @@ The first run may download these models into the local Hugging Face cache.
 - [ ] **Skills.** Package reusable agent skills for common scientific discovery workflows and expose best practices as easier-to-load components.
 - [ ] **More Knowledge.** Integrate more knowledge forms beyond paper-centric entities, such as datasets, code, standards, theorems, and experimental experience.
 - [ ] **Benchmark and Evaluation.** Build dedicated benchmarks and evaluation protocols for downstream scientific research tasks supported by SciNet.
-- [ ] **Dynamic Update**Improve dynamic knowledge updates toward a more systematic and frequent refresh mechanism.
+- [ ] **Dynamic Update.** Improve dynamic knowledge updates toward a more systematic and frequent refresh mechanism.
 
 ## ✍️ Citation