chore: updated docs

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Author: 0PrashantYadav0

lib/node_modules/@stdlib/blas/ext/base/wasm/snansumpw/README.md

@@ -76,7 +76,7 @@ var v = snansumpw.main( 4, x1, 2 );
 
 #### snansumpw.ndarray( N, x, strideX, offsetX )
 
-Computes the sum of single-precision floating-point strided array elements, ignoring `NaN` values and using pairwise summation indexing semantics.
+Computes the sum of single-precision floating-point strided array elements, ignoring `NaN` values and using pairwise summation and alternative indexing semantics.
 
 ```javascript
 var Float32Array = require( '@stdlib/array/float32' );