Update READMEs

Author: vanntile

10 - Hold Shift and Check Checkboxes/README.md

@@ -2,7 +2,7 @@
 
 This tutorial shows how to create a `shift select` checkbox list.
 
-![10 - Hold Shift and Check Checkboxes](../assets/img/10 - Hold Shift and Check Checkboxes.png)
+![Hold Shift and Check Checkboxes](../assets/img/10%20-%20Hold%20Shift%20and%20Check%20Checkboxes.png?raw=true "Presentation Image")
 
 ## My implementation
 
@@ -24,6 +24,3 @@ const check = (s, e) => {
   }
 }
 ```
-
-
-

11 - Custom Video Player/README.md

@@ -2,7 +2,7 @@
 
 This tutorial shows how to create a custom video player.
 
-![11 - Custom Video Player](../assets/img/11 - Custom Video Player.png)
+![Custom Video Player](../assets/img/11%20-%20Custom%20Video%20Player.png?raw=true "Presentation Image")
 
 ## My contribution
 
@@ -29,4 +29,4 @@ const handleFullscreen = () => {
     document.exitFullscreen()
   }
 }
-```
+```