Update README.md

Author: surikov

README.md

@@ -50,6 +50,8 @@ Hire me if you need advanced help (sss1024@gmail.com) - https://www.linkedin.com
 
 [Launch](https://surikov.github.io/RiffShareAndroid/app/src/main/assets/fretload.html?riff=1-120-035110e4020c4120a411064110741108411094110c3320c2320e3020e202034310333106331062310733107231083310823109331092310a2310a3311354113461133611644116361162611744118441194411c4421e4421c3621c2621e2621e3621736117261183611826119361192610051300433003330433204432045121054310463103631454214462143621a2611a3611a441-0001002222100010000100222210000)
 
+![Screenshot](https://surikov.github.io/webaudiofont/img/fretboard.png)
+
 #### Auto accompaniment
 
 [https://github.com/surikov/rockdice](https://github.com/surikov/rockdice)