docs: point to University for full usage docs

README.md

@@ -4,6 +4,8 @@ The WARDEN (**W**orkflow for the **A**nalysis of **R**NA-Seq **D**ifferential **
 
 There are 3 entrypoints to the WARDEN workflow. The start-to-end workflow begins with FastQ files which are aligned by STAR. WARDEN can optionally be entered at this point with user-aligned RNA-Seq BAMs. Aligned BAMs are then run through HTSeq-count to determine the number of reads mapping to features. The next stage can also be entered with user-derived count files, where differential expression analysis is performed on the defined cohorts.
 
+For the full usage documentation, visit the [St. Jude Cloud University](https://university.stjude.cloud/docs/genomics-platform/workflow-guides/warden/).
+
 ## Workflow Steps
 
 1. FastQ files generated by RNA-Seq are mapped to a reference genome using the STAR.