docs: add missing period

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

Author: kgryte

lib/node_modules/@stdlib/blas/base/wasm/sdsdot/README.md

@@ -47,7 +47,7 @@ var z = sdsdot.main( x.length, 0.0, x, 1, y, 1 );
 The function has the following parameters:
 
 -   **N**: number of indexed elements.
--   **scalar**: scalar constant to add to dot product
+-   **scalar**: scalar constant to add to dot product.
 -   **x**: first input [`Float32Array`][@stdlib/array/float32].
 -   **strideX**: index increment for `x`.
 -   **y**: second input [`Float32Array`][@stdlib/array/float32].