update the video url in home page and about page

Author: elainefan331

src/components/HomePageComponents/Section3.tsx

@@ -115,10 +115,6 @@ const Section3: React.FC<Section3Props> = ({ scrollToNext }) => {
           </IconButton>
 
           <video controls style={{ width: "100%", borderRadius: "4px" }}>
-            {/* <source
-              src="https://neurojson.org/tutorials/overview/neurojsonio_volume_render_short.mp4"
-              type="video/mp4"
-            /> */}
             <source
               src="https://neurojson.io/video/preview_video.mp4"
               type="video/mp4"

src/pages/AboutPage.tsx

@@ -147,7 +147,7 @@ const AboutPage: React.FC = () => {
                   style={{ maxHeight: "500px", objectFit: "cover" }}
                 >
                   <source
-                    src={`${process.env.PUBLIC_URL}/video/introduction_video.mp4`}
+                    src="https://neurojson.io/video/introduction_video.mp4"
                     type="video/mp4"
                   />
                   Your browser does not support the video tag.
@@ -229,7 +229,7 @@ const AboutPage: React.FC = () => {
               style={{ maxHeight: "500px", objectFit: "cover" }}
             >
               <source
-                src={`${process.env.PUBLIC_URL}/video/preview_video.mp4`}
+                src="https://neurojson.io/video/preview_video.mp4"
                 type="video/mp4"
               />
               Your browser does not support the video tag.