Add A30 GPU type

"Anvil 2" GPU nodes living in Swan table update

content/submitting_jobs/submitting_gpu_jobs.md

@@ -16,6 +16,7 @@ of GPU in your job resource requirements if necessary.
 | Tesla V100, with OPA   | gpu_v100      | 21 nodes - 2 GPUs with 32GB per node |
 | Tesla V100S            | gpu_v100      | 4 nodes - 2 GPUs with 32GB per node |
 | Tesla T4               | gpu_t4        | 12 nodes - 2 GPUs with 16GB per node |
+| NVIDIA A30             | gpu_a30       | 2 nodes - 4 GPUs with 24GB per node |
 
 
 ### Specifying GPU memory (optional)
@@ -27,6 +28,7 @@ The available memory specifcations are:
 | -------------- | ------------- |
 | 12 GB RAM      | gpu_12gb      |
 | 16 GB RAM      | gpu_16gb      |
+| 24 GB RAM      | gpu_24gb      |
 | 32 GB RAM      | gpu_32gb      |