update readme

Author: kchu25

README.md

@@ -6,7 +6,7 @@
 [![Coverage](https://codecov.io/gh/kchu25/FastaLoader.jl/branch/main/graph/badge.svg)](https://codecov.io/gh/kchu25/FastaLoader.jl)
 
 
-This is a package that provides a subroutine that loads the DNA sequences in the specified fasta file. The DNA sequences are then transformed into some other useful information, e.g. one-hot/WYK encoded vectors, shuffled sequences, Markov background estimates, K-fold cross-validations, etc. for downstream machine learning tasks. As of now, the subroutine requires all sequences in the fasta file must be the same length, and strings must be defined on DNA alphabets `{A,C,G,T}`.
+This is a package that provides subroutines that loads the DNA sequences in the specified fasta file. The DNA sequences are then transformed into some other useful information, e.g. one-hot/WYK encoded vectors, shuffled sequences, Markov background estimates, partitioned datasets for K-fold cross-validations, etc. for downstream machine learning tasks. As of now, we require all sequences in the fasta file to be the same length, and strings must be defined on DNA alphabets `{A,C,G,T}`.
 
 # Usage