typo in backends documentation

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Describe the bug

typos on https://nvidia.github.io/cuda-quantum/latest/using/backends/simulators.html
period should be a comma in the Note, and numbering should be consistent:

(1) The order of the option settings are interchangeable. For example, cudaq.set_target('nvidia', option='mgpu,fp64') is equivalent cudaq.set_target('nvidia', option='fp64.mgpu').
2. The nvidia target has

other typos:
"If you expect the a"
If no explicit target is set, i.e. if (missing comma)

Steps to reproduce the bug

read webpage

Expected behavior

no typos

Is this a regression? If it is, put the last known working version (or commit) here.

Not a regression

Environment

• CUDA Quantum version:
• Python version:
• C++ compiler:
• Operating system:

Suggestions

I'll submit a PR to fix this

Open the simulators documentation page at https://nvidia.github.io/cuda-quantum/latest/using/backends/simulators.html and review the Note and surrounding text for the reported punctuation, numbering, and wording errors. Done means correcting the listed typos and confirming the page reads consistently.