Update redis.md to correct the documentation link to io-redis propoer…

…ties

Update redis.md to correct the documentation link to io-redis propoerties.  
Current Link was incorrect.

www/apps/docs/content/development/cache/modules/redis.md

@@ -74,7 +74,7 @@ You also pass the option `ttl`. This means time-to-live, and it indicates the nu
 
 Other available options include:
 
-- `redisOptions`: an object containing options for the Redis instance. You can learn about available options in [io-redis’s documentation](https://luin.github.io/ioredis/index.html#RedisOptions). By default, it’s an empty object.
+- `redisOptions`: an object containing options for the Redis instance. You can learn about available options in [io-redis’s documentation](https://redis.github.io/ioredis/classes/Redis.html#options). By default, it’s an empty object.
 - `namespace`: a string used to prefix event keys. By default, it's `medusa`.
 
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