Update index.html

Image alt descriptions

Author: Gmac4247

index.html

@@ -524,8 +524,8 @@
     },
     "image": {
       "@type": "ImageObject",
-      "url": "coneAndSphere.jpeg",
-      "description": "Sphere and cone comparison"
+      "url": "cone.jpeg",
+      "description": "Cone"
     },
     "description": "The cone’s volume is derived by comparing a vertical quadrant cone to an octant sphere through a shared quadrant cylinder.",
     "step": [
@@ -2167,13 +2167,13 @@ <h3 style="margin:7px">Surface Area of a Sphere</h3>
 <h3 style="margin:7px">Volume of a Cone</h3>
 <br>
 <figure class="imgbox">
-    <img class="center-fit" src="cone.jpeg" alt="Sphere and cone">
+    <img class="center-fit" src="cone.jpeg" alt="Cone">
 </figure>
 <br>
 <p style="margin:12px"><strong>The volume of a cone can be calculated by algebraically comparing the volume of a vertical quadrant of a cone with equal radius and height to an octant sphere with equal radius, through a quadrant cylinder.</strong></p>
 <br>
 <figure class="imgbox">
-    <img class="center-fit" src="sphereAndCone.jpeg" alt="Comparison">
+    <img class="center-fit" src="sphereAndCone.jpeg" alt="Comparing a quadrant cone to an octant sphere">
 </figure>
 <br>
 <div style="margin:12px">