docs: update function param description

Author: headlessNode

lib/node_modules/@stdlib/blas/ext/base/dnannsumkbn2/README.md

@@ -207,7 +207,7 @@ The function accepts the following arguments:
 -   **N**: `[in] CBLAS_INT` number of indexed elements.
 -   **X**: `[in] double*` input array.
 -   **strideX**: `[in] CBLAS_INT` stride length for `X`.
--   **n**: `[out] CBLAS_INT*` number of non-NaN elements.
+-   **n**: `[out] CBLAS_INT*` pointer for storing the number of non-NaN elements.
 
 ```c
 double stdlib_strided_dnannsumkbn2( const CBLAS_INT N, const double *X, const CBLAS_INT strideX, CBLAS_INT *n );
@@ -231,7 +231,7 @@ The function accepts the following arguments:
 -   **X**: `[in] double*` input array.
 -   **strideX**: `[in] CBLAS_INT` stride length for `X`.
 -   **offsetX**: `[in] CBLAS_INT` starting index for `X`.
--   **n**: `[out] CBLAS_INT*` number of non-NaN elements.
+-   **n**: `[out] CBLAS_INT*` pointer for storing the number of non-NaN elements.
 
 ```c
 double stdlib_strided_dnannsumkbn2_ndarray( const CBLAS_INT N, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, CBLAS_INT *n );

lib/node_modules/@stdlib/blas/ext/base/dnannsumkbn2/src/main.c

@@ -36,7 +36,7 @@
 * @param N        number of indexed elements
 * @param X        input array
 * @param strideX  stride length
-* @param n        number of non-NaN elements
+* @param n        pointer for storing the number of non-NaN elements
 * @return         output value
 */
 double API_SUFFIX(stdlib_strided_dnannsumkbn2)( const CBLAS_INT N, const double *X, const CBLAS_INT strideX, CBLAS_INT *n ) {
@@ -59,7 +59,7 @@ double API_SUFFIX(stdlib_strided_dnannsumkbn2)( const CBLAS_INT N, const double
 * @param X        input array
 * @param strideX  stride length
 * @param offsetX  starting index
-* @param n        number of non-NaN elements
+* @param n        pointer for storing the number of non-NaN elements
 * @return         output value
 */
 double API_SUFFIX(stdlib_strided_dnannsumkbn2_ndarray)( const CBLAS_INT N, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, CBLAS_INT *n ) {