diff --git a/README.md b/README.md
index 78ce717..3bf198f 100644
--- a/README.md
+++ b/README.md
@@ -29,9 +29,12 @@ MCTS
 
 DQNAgent etc.
 
-Pontential Bugs:
+## Pontential Bugs:
+
 0. Wrong calculation of eval value
+
 UCTNode.cpp
+```
 106     if (to_move == FastBoard::WHITE) {
 107         net_eval = 1.0f - net_eval;
 108     }
@@ -39,9 +42,12 @@ UCTNode.cpp
 309         if (tomove == FastBoard::WHITE) {
 310             score = 1.0f - score;
 311         }
+```
 
 1. create children only on leaf node
+
 UCTSearch.cpp
+```
  60     if (!node->has_children() && m_nodes < MAX_TREE_SIZE) {
  61         float eval;
  62         auto success = node->create_children(m_nodes, currstate, eval);
@@ -49,6 +55,7 @@ UCTSearch.cpp
  64             result = SearchResult(eval);
  65         }
  66     }
+```