chore: remove extra forward slash

Signed-off-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: Planeshifter

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

@@ -182,7 +182,7 @@ console.log( A );
 
 [blas]: http://www.netlib.org/blas
 
-[dger]: https://netlib.org/lapack/explore-html//d8/d75/group__ger_gaef5d248da0fdfb62bccb259725935cb8.html
+[dger]: https://netlib.org/lapack/explore-html/d8/d75/group__ger_gaef5d248da0fdfb62bccb259725935cb8.html
 
 [mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray