update readme

README.md

@@ -54,7 +54,6 @@ Imputed count data were tested for differential expression using DESeq2 v1.38.3
 - acetate-depleting 25°C vs constant-acetate 25°C;
 - constant-acetate conditions vs acetate-depleting conditions.
 
-
 ### Sample normalization
 The normalization of the count matrix was conducted using the median of ratios method (Love et al., 2014).