Copied fix for broken download center link to RS 7.8 version

Author: rrelledge

content/operate/rs/7.8/references/rest-api/requests/modules/_index.md

@@ -214,7 +214,7 @@ Asynchronously uploads a new module to the cluster.
 
 The request must contain a Redis module bundled using [RedisModule Packer](https://github.com/RedisLabs/RAMP).
 
-For modules in Redis Stack, download the module from the [download center](https://redis.com/redis-enterprise-software/download-center/software/). See [Install a module on a cluster]({{< relref "/operate/oss_and_stack/stack-with-enterprise/install/add-module-to-cluster#rest-api-method" >}}) for more information.
+For modules in Redis Stack, download the module from the [download center](https://redis.io/downloads/). See [Install a module on a cluster]({{< relref "/operate/oss_and_stack/stack-with-enterprise/install/add-module-to-cluster#rest-api-method" >}}) for more information.
 
 #### Permissions