Update about.html

Fixing the proof

Author: Gmac4247

about.html

@@ -502,7 +502,8 @@ <h2 style="font-size:160%;margin:7px;">The area of a circle is defined by compar
 </msqrt>
 <mi>r</mi>
 </mrow>
-<mo>)</mo>
+<mn>2</mn>
+</mfrac>
 </mrow>
 <mn>2</mn>
 </mfrac>
@@ -512,7 +513,7 @@ <h2 style="font-size:160%;margin:7px;">The area of a circle is defined by compar
 </p>
 <br>
 <br>
-<p style="margin:12px;">After simplifying the equation by r², it is calculable using a calculator, or it can be simplified algebraically.
+<p style="margin:12px;">The equation is calculable using a calculator, or it can be simplified algebraically.
 </p>
 <br>
 <br>