Added "Open in MATLAB Online" button.

Author: benjaminkraus

README.md

@@ -1,6 +1,6 @@
 # Sparklines Component
 
-[![View Sparklines Component on File Exchange](https://www.mathworks.com/matlabcentral/images/matlab-file-exchange.svg)](https://www.mathworks.com/matlabcentral/fileexchange/98924-sparklines-component)
+[![View Sparklines Component on File Exchange](https://www.mathworks.com/matlabcentral/images/matlab-file-exchange.svg)](https://www.mathworks.com/matlabcentral/fileexchange/98924-sparklines-component) [![Open in MATLAB Online](https://www.mathworks.com/images/responsive/global/open-in-matlab-online.svg)](https://matlab.mathworks.com/open/github/v1?repo=MATLAB-Graphics-and-App-Building/sparklinesComponent&file=Example.m)
 
 Version: 1.0