[Docs] Reformat op docs

[imabackstabber]

Motivation

Reformat op docs.Add devices information.

Modification

Reformat ops.md

Checklist

Before PR:

• I have read and followed the workflow indicated in the CONTRIBUTING.md to create this PR.
• Pre-commit or linting tools indicated in CONTRIBUTING.md are used to fix the potential lint issues.
• Bug fixes are covered by unit tests, the case that causes the bug should be added in the unit tests.
• New functionalities are covered by complete unit tests. If not, please add more unit test to ensure the correctness.
• The documentation has been modified accordingly, including docstring or example tutorials.

After PR:

• If the modification has potential influence on downstream or other related projects, this PR should be tested with some of those projects, like MMDet or MMCls.
• CLA has been signed and all committers have signed the CLA in this PR.

[teamwong111]

Please Fix the lint. And tables of data types (float, half) will not be provided, right?

[imabackstabber]

Please Fix the lint. And tables of data types (float, half) will not be provided, right?

lint has been fixed.We don't plan to offer information about half type yet.