doc: Enhancing guides by fixing and making grammar more consistent
This pull request is the beginning of me overviewing the entirety of the docs/guides/
folder.
I am aiming to enhance the grammar and make notations more consistent to improve readability and professionalism.
If this pull request is well received and lands, I will continue with the rest of the guides!
Checklist
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documentation is changed or added -
commit message follows commit guidelines