Added link to TNZ

Author: EmmasBox

packages.md

@@ -14,7 +14,7 @@ This index contains a list of Python packages with z/OS or IBM Z specific suppor
 |--------------|-----------------------------------------------------|-------------|---------------|------------------------------|
 | [ZOAU](https://www.ibm.com/docs/en/zoau/1.4.x?topic=python-apis)         | Allows you to access datasets, jobs, and much more from Python  | ❌          | IBM           | Bundled with ZOAU from shopz |
 | [CBXP](https://github.com/ambitus/cbxp)         | Allows you to access z/OS control blocks from Python| ✅          | Ambitus (OMP) | PyPi / GitHub                |
-| tnz          | Allows you to connect to 3270 from Python, created for 3270 unit testing| ✅          | IBM | PyPi                |
+| [tnz](https://github.com/IBM/tnz)          | Allows you to connect to 3270 from Python, created for 3270 unit testing| ✅          | IBM | PyPi                |
 
 ## z/OS security