JS small fix

Author: rustagir

source/connect-to-mongo/tls.txt

@@ -34,7 +34,7 @@ API <https://docs.oracle.com/javase/8/docs/api/>`__.
 
 .. tip:: Prefer Netty for Asynchronous Apps
 
-   We recommend using Netty for asychronous applications, as it supports
+   We recommend using Netty for asychronous applications because it supports
    asynchronous I/O and handles high connection volumes effectively. To
    learn about using Netty to configure your TLS settings, see the
    :ref:`java-rs-tls-netty-config` section of this guide.