Adding HX to docs

Author: mattmcinnes

articles/azure-boost/includes/azure-boost-series.md

@@ -29,3 +29,4 @@ ms.custom:
 | [Epsv5](../../virtual-machines/epsv5-epdsv5-series.md)         | Memory Optimized               | Production |
 | [Nvadsv5](../../virtual-machines/nva10v5-series.md)            | GPU/AI workload optimized      | Production |
 | [HBv4](../../virtual-machines/hbv4-series.md)                  | High Performance Compute (HPC) | Production |
+| [HX](../../virtual-machines/hx-series.md)                      | High Performance Compute (HPC) | Production |