Update README.md

README.md

@@ -32,7 +32,7 @@ This Hub repository (`AI4Science-WestlakeU/RealPDEBench`) is the **release repo*
   - **Sim**: CFD (2D finite-volume + immersed-boundary; 3D GPU solvers depending on scenario)
 - **Combustion** (`combustion`):
   - **Real**: OH* chemiluminescence imaging (high-speed)
-  - **Sim**: Large Eddy Simulation (LES) with detailed chemistry (NH\(_3\)/CH\(_4\)/air co-firing)
+  - **Sim**: Large Eddy Simulation (LES) with detailed chemistry (NH3/CH4/air co-firing)
 
 ## Scenarios (5)
 
@@ -54,7 +54,7 @@ This Hub repository (`AI4Science-WestlakeU/RealPDEBench`) is the **release repo*
 | controlled_cylinder | \(Re\): 1781–9843; control frequency \(f\): 0.5–1.4 Hz |
 | fsi | \(Re\): 3272–9068; mass ratio \(m^*\): 18.2–20.8 |
 | foil | angle of attack \(\alpha\): 0°–20°; \(Re\): 2968–17031 |
-| combustion | CH\(_4\) ratio: 20–100%; equivalence ratio \(\phi\): 0.75–1.3 |
+| combustion | CH4 ratio: 20–100%; equivalence ratio \(\phi\): 0.75–1.3 |
 
 ## Data format on the Hub