Fixed Readme

README.md

@@ -30,7 +30,7 @@ const double sigma = 1;
 const int refinementNumber = 1;
 
 // Number of steps of the implicict Euler scheme
-const int steps = 100;
+const int stepNumber = 100;
 
 // Stepsize of the implicict Euler scheme
 const double stepSize = 0.0005;