docs: remove extra empty line

PR-URL: stdlib-js#10225

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

Author: stdlib-bot

lib/node_modules/@stdlib/number/float64/base/sub3/README.md

@@ -198,7 +198,6 @@ int main( void ) {
 
 <section class="links">
 
-
 </section>
 
 <!-- /.links -->