updated readme

README.md

@@ -52,6 +52,9 @@ You can set a time span in which the clock should be switched off.
 ## PWA
 You can use the webbrowser function "Add to start screen" to install the webinterface as an app to your android (and possibly ios) smartphone.
 
+# Create own grid-layout
+To create your own grid-layout visit the Wiki: [Create Grid-Layout](https://github.com/panbachi/wordclock/wiki/Create-Grid-Layout)
+
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