Update index.html

index.html

@@ -23,7 +23,7 @@
 	    <img src="inductor.png" alt="RF Air-Core Inductor Calculator">
 	    <br> <br>
 	    <h2> <a href="./toroid.html">RF Toroid Calculator</a> </h2> 
-	    Graphical calculator for ferrite toroids. Powdered Iron support is TBD <br>
+	    Graphical calculator for ferrite and powdered-iron toroids. <br>
 	    <img src="toroid.png" alt="RF Toroid Calculator">
         <br> <br>
 	Notes: TBD