Spelling and Grammar errors in README.md

There are a few grammer and spelling mistakes in the README.md file, which require attention and need to be fixed.

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They are:
* your'e -> you're @ Step Zero, second point.
* succesfully -> successfully @ Step Two, first point.
* most easy -> easiest @ Kind of Contributions you can make, first point.
* Onwed -> Owned @ Document end.
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Open README.md and inspect the four locations named in the issue: Step Zero, Step Two, Kind of Contributions, and the document end. Correct the listed spelling and grammar errors, then review those passages to confirm the requested wording is accurate.

Written by the indexing model from the issue text.