Update README.md

README.md

@@ -18,6 +18,11 @@ Results at :
 ## RnaSeq
 differential analysis of rna-seq data using Voom function (Limma package) [Differential Expression with Limma-Voom](https://ucdavis-bioinformatics-training.github.io/2018-June-RNA-Seq-Workshop/thursday/DE.html)
 >   linear model :  expr ~ line + condition + sex 
+
+interaction line:condition with the linear model : 
+>   expr ~ line + condition + line:condition
+
+
 ## MeDPSeq
 ## Integrative