README-en.md edited online with Bitbucket

README-en.md

@@ -143,6 +143,7 @@ To plot a curve that is described by parametric equations, we compute the $$x$$
 3. The file `main.cpp` (in Sources) contains the function `main()` where you will be adding code. Open this file and study the code.
 
     ```cpp   
+
     QApplication a(argc, argv);
     XYPlotWindow wLine;
     XYPlotWindow wCircle;