Fix a Type Hint and Link in Parallel Execution Documentation

[bustosalex1]

Just addressing 2 small issues I noticed in the Parallel Execution documentation. Thanks for working on this great project!

Changes

• Fixed (what I presume) is a typo in the docs for Parallel Execution, as well as a link that was formatted for markdown instead of RST.

How I tested this

• Built docs locally and verified updates.

Checklist

• [ x] PR has an informative and human-readable title (this will be pulled into the release notes)
• Changes are limited to a single goal (no scope creep)
• Code passed the pre-commit check & code is left cleaner/nicer than when first encountered.
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future TODOs are captured in comments
• Project documentation has been updated if adding/changing functionality.

[ellipsis-dev]

👍 Looks good to me! Reviewed everything up to d96500c in 1 minute and 0 seconds

More details

• Looked at 22 lines of code in 1 files
• Skipped 0 files when reviewing.
• Skipped posting 6 drafted comments based on config settings.

1. docs/concepts/parallel-task.rst:105

• Draft comment:
  Correct type hint for 'counts'. Changing return type from str to int now correctly reflects that the function returns the length of split string.
• Reason this comment was not posted:
  Comment did not seem useful. Confidence is useful = 0% <= threshold 50%
  This comment is purely informative, as it simply acknowledges a correct change without providing any actionable feedback or suggestions. It does not align with the rules provided, which prohibit purely informative comments.

2. docs/concepts/parallel-task.rst:138

• Draft comment:
  Updated link formatting to RST style from markdown style. Ensures documentation renders correctly.
• Reason this comment was not posted:
  Comment did not seem useful. Confidence is useful = 0% <= threshold 50%
  This comment is purely informative, explaining a change from markdown to RST style for documentation purposes. It doesn't provide a suggestion, ask for confirmation, or highlight a potential issue. According to the rules, purely informative comments should be removed.

3. docs/concepts/parallel-task.rst:102

• Draft comment:
  Good catch! Changing the return type of the counts function from str to int ensures that the type hint correctly reflects that len() returns an integer.
• Reason this comment was not posted:
  Comment did not seem useful. Confidence is useful = 0% <= threshold 50%
  This comment is purely informative, explaining the reason for a change in the return type of a function. It does not suggest any action or improvement, nor does it ask for confirmation or testing. According to the rules, purely informative comments should be removed.

4. docs/concepts/parallel-task.rst:135

• Draft comment:
  The link formatting has been updated to use proper reStructuredText syntax. This fixes the markdown style link and will render correctly in the docs.
• Reason this comment was not posted:
  Comment did not seem useful. Confidence is useful = 0% <= threshold 50%
  This comment is purely informative and does not provide any actionable feedback or suggestions for improvement. It simply acknowledges a change that was made, which violates the rule against making purely informative comments.

5. docs/concepts/parallel-task.rst:137

• Draft comment:
  Typo: In the sentence 'Another option is write a customer wrapper function that uses __set_state__ and __get_state__...', 'customer' should be replaced with 'custom'.
• Reason this comment was not posted:
  Comment was on unchanged code.

6. docs/concepts/parallel-task.rst:64

• Draft comment:
  Typographical issue: The sentence 'Note that the new executor is required to handle dynamic creation of nodes (E.G. using Parallelizable[] and Collect[].' is missing a closing parenthesis. Please add a ')' at the end of the parenthetical statement.
• Reason this comment was not posted:
  Comment was not on a location in the diff, so it can't be submitted as a review comment.

Workflow ID: wflow_g24RwJq1NcEpfQAx

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[skrawcz]

thank you!