Update README.md

Author: Maruthi NH

README.md

@@ -6,9 +6,10 @@ To run the code
 python3.8 lid_driven_cavity.py
 ```
 
-**Sample results**
+***Sample results***
+
+**Simulation parameters**
 
-*Simulation parameters*
 - Reynolds number: 100
 - Mach number: 0.1
 - Number of grid points: 64 x 64
@@ -17,4 +18,4 @@ Velocity contour plot obtained from the solver.
 
 Solution has converged to 1e-10
 
-![velocity_cont1](https://user-images.githubusercontent.com/4444574/173889919-4bbad35b-dfdb-41cb-bfe0-1f73cf64df65.png)
+![velocity_cont1](https://user-images.githubusercontent.com/4444574/174001170-7e85b372-0bb8-4860-8f61-626a3e0134c9.png)