Fix typos in code example of couple-your-code step 3 (#349)

Author: MakisH

pages/docs/couple-your-code/couple-your-code-mesh-and-data-access.md

@@ -61,9 +61,9 @@ std::vector<double> coords(vertexSize*dim); // coords of vertices at wet surface
 std::vector<int> vertexIDs(vertexSize);
 precice.setMeshVertices("FluidMesh", coords, vertexIDs);
 
-int forcesDim = precice.getDataDimensions("FluidMesh", "Forces)
+int forcesDim = precice.getDataDimensions("FluidMesh", "Forces");
 std::vector<double> forces(vertexSize*forcesDim);
-int displacementsDim = precice.getDataDimensions("Displacements")
+int displacementsDim = precice.getDataDimensions("FluidMesh", "Displacements");
 std::vector<double> displacements(vertexSize*displacementsDim);
 
 double solverDt; // solver time step size