style: fix missing spaces

Author: kgryte

lib/node_modules/@stdlib/blas/base/caxpy/README.md

@@ -36,7 +36,7 @@ Scales values from `cx` by `ca` and adds the result to `cy`.
 
 ```javascript
 var Complex64Array = require( '@stdlib/array/complex64' );
-var Complex64 = require('@stdlib/complex/float32/ctor');
+var Complex64 = require( '@stdlib/complex/float32/ctor' );
 var realf = require( '@stdlib/complex/float32/real' );
 var imagf = require( '@stdlib/complex/float32/imag' );