Correct typo in README.md

README.md

@@ -7,7 +7,7 @@ Xcompact3d is a Fortran-based framework of high-order finite-difference flow sol
 dedicated to the study of turbulent flows using high fidelity modelling such as 
 Direct and Large Eddy Simulations (DNS/LES), for which the largest turbulent scales are simulated.
 Xcompact3d can combine the versatility of industrial codes with the accuracy of spectral codes by using 
-the Immersed Boundary Method (IBM) to simulate comples geometries, while retaining high order accuracy. 
+the Immersed Boundary Method (IBM) to simulate complex geometries, while retaining high order accuracy. 
 Its user-friendliness, simplicity, versatility, accuracy, scalability, portability and efficiency 
 makes it an attractive tool for the Computational Fluid Dynamics community.