README.md in second_level_cache-2.6.1 vs README.md in second_level_cache-2.6.2

@@ -132,10 +132,10 @@
 ```
 
 ## Tips:
 
 * When you want to clear only second level cache apart from other cache for example fragment cache in cache store,
-you can only change the `cache_key_prefix`:
+you can only change the `cache_key_prefix` (default: `slc`):
 
 ```ruby
 SecondLevelCache.configure.cache_key_prefix = "slc1"
 ```