Merge pull request #3317 from Catalin4513/fix-caching-imports-docs

docs: fix import clarification for Cache and CACHE_MANAGER

Author: kamilmysliwiec

content/techniques/caching.md

@@ -38,7 +38,7 @@ To interact with the cache manager instance, inject it to your class using the `
 constructor(@Inject(CACHE_MANAGER) private cacheManager: Cache) {}
 ```
 
-> info **Hint** The `Cache` class is imported from the `cache-manager`, while `CACHE_MANAGER` token from the `@nestjs/cache-manager` package.
+> info **Hint** The `Cache` class and the `CACHE_MANAGER` token are both imported from the `@nestjs/cache-manager` package.
 
 The `get` method on the `Cache` instance (from the `cache-manager` package) is used to retrieve items from the cache. If the item does not exist in the cache, `null` will be returned.