Clean up simulator onboarding and dependency messaging

Author: simaba

README.md

@@ -52,10 +52,11 @@ Decide outcome}
 ```bash
 git clone https://github.com/simaba/agent-simulator.git
 cd agent-simulator
-pip install -r requirements.txt
 python run_demo.py --scenario normal_success
 ```
 
+This repository currently uses only the Python standard library, so no third-party installation step is required.
+
 Available scenarios:
 
 ```bash
@@ -81,7 +82,7 @@ See `examples/sample-output.md` for a full example run.
 
 ## Repository structure
 
-```
+```text
 run_demo.py             # Entry point
 src/
   agents.py             # Agent role implementations
@@ -90,7 +91,7 @@ src/
   scenarios.py          # Scenario definitions
 examples/
   sample-output.md      # Example run output
-requirements.txt
+requirements.txt        # Reserved for future optional dependencies
 ```
 
 ---
@@ -120,4 +121,4 @@ This repository is part of a connected toolkit for responsible AI operations:
 
 ---
 
-*Shared in a personal capacity. Open to collaborations and feedback — connect on [LinkedIn](https://linkedin.com/in/simaba) or [Medium](https://medium.com/@bagheri.sima).*
+*Shared in a personal capacity. Open to collaborations and feedback — connect on [LinkedIn](https://linkedin.com/in/simaba) or [Medium](https://medium.com/@bagheri.sima).*

requirements.txt

@@ -1 +1 @@
-
+# No third-party dependencies are required for the current simulator.