[skip ci] Add Jon to script credits

Author: pinin4fjords

bin/tximport.r

@@ -1,7 +1,7 @@
 #!/usr/bin/env Rscript
 
 # Script for importing and processing transcript-level quantifications.
-# Written by Lorena Pantano and released under the MIT license.
+# Written by Lorena Pantano, later modified by Jonathan Manning, and released under the MIT license.
 
 # Loading required libraries
 library(SummarizedExperiment)