replace https://github.com/borisyankov/DefinitelyTyped to https://github.com/DefinitelyTyped/DefinitelyTyped

java-applet/java-applet.d.ts

@@ -1,7 +1,7 @@
 // Type definitions for Java Applet
 // Project: https://www.java.com/
 // Definitions by: Cyril Schumacher <https://github.com/cyrilschumacher>
-// Definitions: https://github.com/borisyankov/DefinitelyTyped
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 /**
  * @summary Java applet Status. More details: {@link http://docs.oracle.com/javase/8/docs/technotes/guides/deploy/applet_dev_guide.html#JSDPG719|Applet Status And Event Handlers}