docs: add readme file

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---

Author: DivitJain26

lib/node_modules/@stdlib/blas/base/chpmv/examples/index.js

@@ -42,7 +42,7 @@ console.log( AP.get( 0 ).toString() );
 var alpha = new Complex64( 2.0, 3.0 );
 console.log( alpha.toString() );
 
-var beta = new Complex64( 0.0, 0.0 );
+var beta = new Complex64( 3.0, -2.0 );
 console.log( beta.toString() );
 
 chpmv( 'row-major', 'lower', N, alpha, AP, x, 1, beta, y, 1 );