Update README.md

Fix for issue #90

Author: MaBnt

README.md

@@ -2256,7 +2256,7 @@ or download the latest version from [www.gnuplot.info](www.gnuplot.info). If you
 * Make sure you have a recent version of [Visual Studio](https://visualstudio.microsoft.com)
 * Download Git from [https://git-scm.com/download/win](https://git-scm.com/download/win) and install it
 * Download CMake from [https://cmake.org/download/](https://cmake.org/download/) and install it
-* Download Gnuplot from [www.gnuplot.info](www.gnuplot.info) and install it
+* Download Gnuplot from [www.gnuplot.info](www.gnuplot.info) and install it (if Matplot++ examples don't display with no console errors and gnuplot running, try to re-install with wxt terminal).
 
 If you're using the Gnuplot installer, make sure you mark the option "Add application directory to your PATH environment variable".