Update README.md

README.md

 # ClaiRO
 
-ClaiRO is a low-bias method to detect and quantify exon-defining units from paired-end RNA-Seq alignments 
+ClaiRO is a low-bias method to detect and quantify exon-defining units from paired-end RNA-Seq alignments. ClaiRO searches for read-pairs from cDNA fragments which span internal exons: 
+
+![Alt text](https://git.nci.org.au/as7425/ClaiRO/uploads/b6ae37839335a888101923565a7080cb/Screen_Shot_2020-10-18_at_4.38.50_pm.png?raw=true "Exon-defining units")
 
 # Dependencies