diff --git a/README.md b/README.md
index 2b6ec99fd30c5ac4465dd566e16fa10c59e6267d..1afce6ee48a305fd0e8b8458fe45b693fc88a8d5 100644
--- a/README.md
+++ b/README.md
@@ -38,4 +38,11 @@ Conversion of a fasta file into a GTF file
 - list as hashing table
 - regexp
 
+## session n+1
+Converting a nucleotide sequence into a protein sequence
+- load condon to AA table
+- build conversion function between codon and AA
+- build conversion function for a sequence function 
+- use list as hashing table
+