Update README.md

README.md

@@ -115,7 +115,7 @@ Each row corresponds to a **single simulation or measurement configuration** for
    - `thermal_stress` (MPa): Stress induced by temperature changes.  
    - `strain_rate` (1/°C): Dimensional changes per degree.  
    - `optical_power_input` (mW): Power at waveguide input.  
-   - `optical_power_output_min` and `optical_power_output_max` (mW): Output power at temperature limits.  
+   - `optical_power_output_min` and `optical_power_output_max` (mW): Output power at min and max temperature limits.  
 
 6. **Simulation and Metadata**  
    - `wavelength_min` and `wavelength_max` (nm): Operating wavelength range.