Update index.html

Fix

Author: Gmac4247

index.html

@@ -734,7 +734,7 @@ <h3 itemprop="name" style="margin:7px">Circumference of a Circle</h3>
 <meta itemprop="isAccessibleForFree" content="true">
 <meta itemprop="isFamilyFriendly" content="true">
 <meta itemprop="operatingSystem" content="Web">
-<meta itemprop="url" content="<meta itemprop="name" content="https://basic-geometry.github.io#circumference_calculator">
+<meta itemprop="url" content="https://basic-geometry.github.io#circumference_calculator">
 <meta itemprop="usageInfo" content="Enter the radius">
 <label for="circle-radius-c">Radius:</label>
 <input id="circle-radius-c" type="number" value="1" step="any">
@@ -2523,7 +2523,7 @@ <h3 itemprop="name" style="margin:7px">Area of a regular Polygon</h3>
 <meta itemprop="interactivityType" content="Interactive">
 <meta itemprop="isAccessibleForFree" content="true">
 <meta itemprop="operatingSystem" content="Web">
-<meta itemprop="url" content="<meta itemprop="name" content="https://basic-geometry.github.io#polygon_area_calculator">
+<meta itemprop="url" content="https://basic-geometry.github.io#polygon_area_calculator">
 <meta itemprop="usageInfo" content="Enter the side count and the length of a side">
 <label for="side-count">Side count:</label>
 <input id="side-count" type="number" value="5" step="1">
@@ -2603,7 +2603,7 @@ <h3 itemprop="name" style="margin:7px">Area of a regular Polygon</h3>
 <meta itemprop="description" content="radius of the parent circle">
 <meta itemprop="minValue" content="0">
 </div>
-<meta itemprop="target" content="<meta itemprop="name" content="https://basic-geometry.github.io?q={circle_segment_height=1_length=3_radius=4_area=?}">
+<meta itemprop="target" content="https://basic-geometry.github.io?q={circle_segment_height=1_length=3_radius=4_area=?}">
 <div itemprop="actionProcess" itemscope itemtype="https://schema.org/HowTo">
 <div itemprop="estimatedCost" itemscope itemtype="https://schema.org/MonetaryAmount">
 <meta itemprop="currency" content="USD">