update readme

Author: CheYulin

bioinformatics/ReadMe.md

@@ -18,4 +18,10 @@ content | detail
 
 content | detail
 --- | ---
-[z_algorithm.py](string_matching/z_algorithm.py) | z-algorithm implementation for exact matching
+[z_algorithm.py](string_matching/z_algorithm.py) | z-algorithm implementation for exact matching
+[suffix tree](suffix_tree.py) | linear suffix tree construction ukkonen algorithm
+
+## Dynamic Programming
+
+see [dynamic_programming](dynamic_programming).
+

crpytography/ReadMe.md

@@ -22,7 +22,7 @@ basic operations are provided
 - [With Integer](libs/extended_euclidean.py), extended eculidean implementation for integers
 - [With Finite Filed](libs/extended_euclidean_poly.py), extended eculidean implementation for finite field numbers
 
-##Chinese Remainder Theorem
+## Chinese Remainder Theorem
 - [Chinese RemainderUsage](libs/chinese_remainder_theorem.py), chinese remainder theorem implementation
 
 ## Cipher