Update table on node local storage

- Add Capella
- Add links to hardware overview for all mentioned cluster

doc.zih.tu-dresden.de/docs/jobs_and_resources/slurm.md

@@ -552,9 +552,10 @@ following table.
 
 | Cluster          | Number of  Nodes  | Local Storage         | Mountpoint | Request                                                            |
 |------------------|-------------------|-----------------------|------------|--------------------------------------------------------------------|
-| `Alpha Centauri` | All compute nodes | 3.5 TB on NVMe device | `/tmp`     | Always present, no action needed                                   |
-| `Barnard`        | 12 nodes          | 1.8 TB on NVMe device | `/tmp`     | `--constraint=local_disk` option to `sbatch`, `salloc`, and `srun` |
-| `Romeo`          | All compute nodes | 200 GB                | `/tmp`     | Always present, no action needed                                   |
+| [`Alpha Centauri`](hardware_overview.md#alpha-centauri) | All compute nodes | 3.5 TB on NVMe device | `/tmp`     | Always present, no action needed                                   |
+| [`Barnard`](hardware_overview.md#barnard)               | 12 nodes          | 1.8 TB on NVMe device | `/tmp`     | `--constraint=local_disk` option to `sbatch`, `salloc`, and `srun` |
+| [`Capella`](hardware_overview.md#capella)               | All compute nodes | 800 GB                | `/tmp`     | Always present, no action needed                                   |
+| [`Romeo`](hardware_overview.md#romeo)                   | All compute nodes | 200 GB                | `/tmp`     | Always present, no action needed                                   |
 
 !!! hint "Clusters `Power9` and `Julia`"