Update index.html

Semantics

Author: Gmac4247

index.html

@@ -574,7 +574,7 @@ <h1 style="font-size:140%;margin:7px">Introducing The Core Geometric System ™<
 <br>
 <p style="margin:12px;"><b>Numbers</b></p>
 <br>
-<table border="1" cellpadding="8" cellspacing="0">
+<table>
   <thead>
     <tr>
 		<th>Values</th>
@@ -617,7 +617,7 @@ <h1 style="font-size:140%;margin:7px">Introducing The Core Geometric System ™<
 <br>
 <br>
 Example #1 - The year 2025 in the decimal system with Arab numerals</p>
-<table border="1" cellpadding="8" cellspacing="0">
+<table>
   <thead>
     <tr>
       <th>2</th>
@@ -889,6 +889,7 @@ <h1 style="font-size:140%;margin:7px">Introducing The Core Geometric System ™<
 <br>
 <br>
 <br>
+<section>
 <b>➕ Adding fractions</b>
 <br>
 <br>
@@ -914,9 +915,11 @@ <h1 style="font-size:140%;margin:7px">Introducing The Core Geometric System ™<
     <mn>1</mn>
   </mrow>
 </math>
+</section>
 <br>
 <br>
 <br>
+<section>
 <p style="margin:12px;"><b>➖ Subtracting fractions</b>
 <br>
 <br>