docs update

README.md

-# MOO4Modelica + ModelicaOrchestrator
+# OptiOrch
 
-**MOO4Modelica:** An optimization framework for Modelica which supports both single- and multi-objective optimization.
+A toolchain which integrates the optimization framework “MOO4Modelica” and the orchestration workflow “ModelicaOrch” to achieve optimal control in Modelica-based simulations.
 
-**ModelicaOrchestrator:** An orchestration workflow for Modelica.
+**MOO4Modelica:** The optimization framework which supports both single- and multi-objective parameter optimization.
+**ModelicaOrch:** The orchestration workflow to dynamically adapt models based on real-time input data.
 
 GitHub Page: [https://wangzizhe.github.io/MOO4Modelica](https://wangzizhe.github.io/MOO4Modelica)
 
-<img src="./diagrams/MOO4Modelica_framework.png" alt="framework" style="zoom:80%;" />
-
-<img src="./diagrams/ModelicaOrchestrator.png" alt="workflow" style="zoom:80%;" />
+<img src="./diagrams/MOO4Modelica.png" alt="framework" style="zoom:80%;" />
+<img src="./diagrams/ModelicaOrch.png" alt="workflow" style="zoom:80%;" />
 
 #### Structure: