Typo in singularity Makefile.

This resulted in a wrong symbolic link in the container.

singularity/Makefile

@@ -11,7 +11,7 @@ install: run_pipeline run_pipeline.sh workflows_shell.sh
 	install run_pipeline $(PREFIX)_$(VERSION)/bin/.
 	install run_pipeline.sh $(PREFIX)_$(VERSION)/bin/.
 	install workflows_shell.sh $(PREFIX)_$(VERSION)/bin/.
-	for datatype in sRNA-seq smallRNA-seq RNA-seq GRO-seq PRO-seq Degradome-seq Ribo-seq iCLIP-seq iCLIP; \
+	for datatype in sRNA-seq small_RNA-seq RNA-seq GRO-seq PRO-seq Degradome-seq Ribo-seq iCLIP-seq iCLIP; \
 	do \
 	    ln -sf $(PREFIX)_$(VERSION)/bin/run_pipeline.sh $(PREFIX)_$(VERSION)/bin/run_$${datatype}_pipeline; \
 	done