Update dynamic_programming/house_robber.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

Author: Swastyy

dynamic_programming/house_robber.cpp

@@ -20,7 +20,7 @@
 namespace dynamic_programming {
 /**
  * @namespace house_robber
- * @brief Functions for House Robber algorithm
+ * @brief Functions for the [House Robber](https://labuladong.gitbook.io/algo-en/i.-dynamic-programming/houserobber) algorithm
  */
 namespace house_robber {
 /**