Improve Javadoc

caching/src/main/java/com/iluwatar/caching/App.java

@@ -52,12 +52,12 @@ import org.slf4j.LoggerFactory;
  * whether the data is coming from the cache or the DB (i.e. separation of concern). The AppManager
  * ({@link AppManager}) handles the transaction of data to-and-from the underlying data store
  * (depending on the preferred caching policy/strategy).
- *
- * <i>App --> AppManager --> CacheStore/LRUCache/CachingPolicy --> DBManager</i>
+ * <p>
+ * <i>{@literal App --> AppManager --> CacheStore/LRUCache/CachingPolicy --> DBManager} </i>
  * </p>
  *
  * @see CacheStore
- * @See LRUCache
+ * @see LruCache
  * @see CachingPolicy
  *
  */