What does this PR do?

This PR fix the typo seen in multiple files

offical > official
propotions > proportions
intialized > initialized
varibale > variable
dose > does
Pipline > Pipeline
unlimted > unlimited

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline?
• Did you read our philosophy doc (important for complex PRs)?
• Was this discussed/approved via a Github issue or the forum? Please add a link to it if that's the case.
• Did you make sure to update the documentation with your changes? Here are the
  documentation guidelines, and
  here are tips on formatting docstrings.
• Did you write any new necessary tests?

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