usage/corebox: Fix incorrect URLs for embedding videos

Author: ethanjli

docs/usage/disc/corebox/en/07_Showcase.md

@@ -8,12 +8,12 @@ title: Showcasing Smartphone Microscope Images
 
 
 <video controls width="90%">
-  <source src="../IMAGES/showcase/Sample_4x.mp4"/>
+  <source src={require("../IMAGES/showcase/Sample_4x.mp4").default}/>
 </video>
 
 
 <video controls width="90%">
-  <source src="../IMAGES/showcase/Sample_10x.mp4"/>
+  <source src={require("../IMAGES/showcase/Sample_10x.mp4").default}/>
 </video>
 
 

docs/usage/disc/corebox/it/07_Showcase.md

@@ -8,15 +8,16 @@ title: Mostrando Immagini del Microscopio per Smartphone
 
 
 <video controls width="90%">
-  <source src="../IMAGES/showcase/Sample_4x.mp4"/>
+  <source src={require("../IMAGES/showcase/Sample_4x.mp4").default}/>
 </video>
 
 
 <video controls width="90%">
-  <source src="../IMAGES/showcase/Sample_10x.mp4"/>
+  <source src={require("../IMAGES/showcase/Sample_10x.mp4").default}/>
 </video>
 
 
 ![](../IMAGES/showcase/Scale_4x_div0.1.jpg)
 
-![](../IMAGES/showcase/Scale_10x_div0.1.jpg)
+![](../IMAGES/showcase/Scale_10x_div0.1.jpg)
+