Forgot to change the code reference in the markdown. Fixed.

exercises/exercise-fluidsystem/README.md

@@ -106,7 +106,7 @@ private:
      * Uncomment second line and comment first line for using the compressible component
      */
     using LiquidMyComponentPhase = typename FluidSystems::OnePLiquid<Scalar, MyIncompressibleComponent<Scalar> >;
-    // using LiquidMyComponent = typename FluidSystems::OnePLiquid<Scalar, MyCompressibleComponent<Scalar> >;
+    // using LiquidMyComponentPhase = typename FluidSystems::OnePLiquid<Scalar, MyCompressibleComponent<Scalar> >;
 
 public:
     using type = typename FluidSystems::TwoPImmiscible<Scalar, LiquidWaterPhase, LiquidMyComponentPhase>;