update README.md

Author: xtaci

README.md

@@ -96,4 +96,5 @@
  wycg1984: for K-Means
  xmuliang: for HeapSort, Kruskal MST
  wyh267: for base64, LRU, bubble sort, selection sort
- ZhangYou0122 : Push-Relabel algorithm, SuffixTree
+ ZhangYou0122: Push-Relabel algorithm 
+UsingtcNower: Suffix Tree