Updated description part 2

workflow/main.nf

 /*
  * Copyright (c) 2024. The University of Texas Southwestern Medical Center
  *
- * TODO: (AC) Brief description of ATAC-seq
- *
+ * TODO: (AC) Brief description of ATAC-seq (DONE)
+ * ATAC-seq is a molecular biology technique that assesses chromatin accessibility in a genome. It uses a hyperactive Tn5 transposase to insert sequencing adapters into open chromatin regions, allowing researchers to identify and sequence these accessible genomic regions. ATAC-seq is widely used to study gene regulation, identify enhancers and promoters, and gain insights into chromatin structure.
  * @authors
- * Achisha Saikia, Felix Perez
+ * Felix Perez, Achisha Saikia
  *
  */