docs: use approximate rather than exact values

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/math/base/special/fast/maxf/docs/types/index.d.ts

@@ -31,15 +31,15 @@
 *
 * @example
 * var v = maxf( 3.14, 4.2 );
-* // returns 4.199999809265137
+* // returns ~4.2
 *
 * @example
 * var v = maxf( 3.14, NaN );
 * // returns NaN
 *
 * @example
 * var v = maxf( NaN, 3.14 );
-* // returns 3.140000104904175
+* // returns ~3.14
 *
 * @example
 * var v = maxf( -0.0, +0.0 );