fix: add missing method

lib/node_modules/@stdlib/random/base/mt19937/docs/types/index.d.ts

@@ -127,6 +127,17 @@ interface Random extends PRNG {
 	*/
 	(): number;
 
+	/**
+	* Returns a pseudorandom number on the interval `[0,1)`.
+	*
+	* @returns pseudorandom number
+	*
+	* @example
+	* var r = mt19937.normalized();
+	* // returns <number>
+	*/
+	normalized(): number;
+
 	/**
 	* Returns a 32-bit Mersenne Twister pseudorandom number generator.
 	*
@@ -168,6 +179,10 @@ interface Random extends PRNG {
 * // returns <number>
 *
 * @example
+* var v = mt19937.normalized();
+* // returns <number>
+*
+* @example
 * var rand = mt19937.factory({
 *     'seed': 12345
 * });

lib/node_modules/@stdlib/random/base/mt19937/docs/types/test.ts

@@ -32,6 +32,18 @@ import mt19937 = require( './index' );
 	mt19937( 2, 3 ); // $ExpectError
 }
 
+// Attached to main export is a `normalized` method which returns a number...
+{
+	mt19937.normalized(); // $ExpectType number
+}
+
+// The compiler throws an error if the `normalized` method is provided any number of arguments...
+{
+	mt19937.normalized( true ); // $ExpectError
+	mt19937.normalized( 123 ); // $ExpectError
+	mt19937.normalized( 'abc' ); // $ExpectError
+}
+
 // Attached to main export is a `factory` method which returns a function...
 {
 	mt19937.factory(); // $ExpectType NullaryFunction