Update README.md

Author: coder4589

README.md

@@ -4,5 +4,9 @@ get browser screen size - ViewPort (Correct): https://coder4589.github.io/jQuery
 
 get browser screen size - ViewPort (Wrong): https://coder4589.github.io/jQuery/get%20browser%20screen%20size%20-%20ViewPort%20(Wrong).html
 
+get viewport size in Real Time - from a div element (youtube video): https://www.youtube.com/watch?v=MXQ-NOUVwjA
 
+get viewport size in Real Time - from a div element (display none - in use): https://coder4589.github.io/jQuery/get%20viewport%20size%20in%20Real%20Time%20-%20from%20a%20div%20element%20(display%20none%20-%20in%20use).html
+
+get viewport size in Real Time - from a div element (zindex -999 - in use): https://coder4589.github.io/jQuery/get%20viewport%20size%20in%20Real%20Time%20-%20from%20a%20div%20element%20(zindex%20-999%20-%20in%20use).html