Update README.md

WES/README.md

 ## Introduction
 
 **Whole Exome** data analysis - from fastq data to variants calling and annotation
-As stated in supplementary methods we performed WES analysis relying mostly on the GATK best practices for WES analysis.
+As stated in supplementary methods we performed WES analysis relying mostly on the GATK best practices for WES analysis.  
 Raw fastq data are available at the folling ENA repository.   
 
 Below the main steps performed and the relative running commands: