Describe the bug

In this part of the documentation, it states

Parsl Providers write the requests to requisition “Blocks” (e.g., supercomputer nodes) on your behalf.

However, the parenthetical phrase "supercomputer nodes" here is quite overloaded. In the context of Slurm, my understanding is that 2 blocks would be 2 separate Slurm allocations. Perhaps it would be better to emphasize that instead.