Fixing typo

Changed simple to simply in the different stores section of caching.

Author: dodgees

content/techniques/caching.md

@@ -141,7 +141,7 @@ handleEvent(client, data) {
 
 #### Different stores
 
-This service takes advantage of [cache-manager](https://github.com/BryanDonovan/node-cache-manager) under the hood. The `cache-manager` package supports a wide-range of useful stores, for example, [Redis](https://github.com/dabroek/node-cache-manager-redis-store) store. A full list of supported stores is available [here](https://github.com/BryanDonovan/node-cache-manager#store-engines). To set up the Redis store, simple pass the package together with corresponding options to the `register()` method.
+This service takes advantage of [cache-manager](https://github.com/BryanDonovan/node-cache-manager) under the hood. The `cache-manager` package supports a wide-range of useful stores, for example, [Redis](https://github.com/dabroek/node-cache-manager-redis-store) store. A full list of supported stores is available [here](https://github.com/BryanDonovan/node-cache-manager#store-engines). To set up the Redis store, simply pass the package together with corresponding options to the `register()` method.
 
 ```typescript
 import * as redisStore from 'cache-manager-redis-store';