docs: update normalization function documentation to clarify temporary implementation

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Author: devag7

lib/node_modules/@stdlib/ml/incr/kmeans/lib/normalize.js

@@ -28,14 +28,22 @@ var sqrt = require( '@stdlib/math/base/special/sqrt' );
 /**
 * Normalizes a vector.
 *
+* ## Notes
+*
+* -   This is a temporary implementation. This function should eventually be
+*     replaced once the project has implemented comparable functionality as a
+*     standalone package (e.g., BLAS), which may avoid the naive approach
+*     susceptible to overflow/underflow due to summing squares and computing
+*     the square root.
+*
 * @private
 * @param {NonNegativeInteger} N - number of elements
 * @param {NumericArray} X - strided array
 * @param {integer} strideX - stride
 * @param {NonNegativeInteger} offsetX - index offset
 * @returns {NumericArray} input array
 */
-function normalize( N, X, strideX, offsetX ) { // TODO: eventually remove this function once project has implemented comparable functionality as a standalone package (e.g., BLAS, which may avoid the naive approach susceptible to overflow/overflow due to summing squares and computing the square root)
+function normalize( N, X, strideX, offsetX ) {
 	var xi;
 	var m;
 	var v;