Update math.adoc

Fixed broken inline bold text formatting.

src/docs/asciidoc/jme3/math.adoc

@@ -265,7 +265,7 @@ We have two Vectors (2f and 3f) meaning we have tuples of 2 float values or 3 fl
 
 ===== Multiplication by Scalar
 
-A Vector can be multiplied by a scalar value to produce a second Vector with the same proportions as the first. a*V* = *V*a = <aV~1~, aV~2~,…,aV~n~>
+A Vector can be multiplied by a scalar value to produce a second Vector with the same proportions as the first. a**V** = **V**a = <aV~1~, aV~2~,…,aV~n~>
 
 
 ===== Addition and Subtraction