Fixed broken README.md File Link in Windows_guide.md

[BhendiBoi]

Issue Number

NA

Describe the changes you've made

Changed the README.md Link.

Describe if there is any unusual behaviour of your code(Write NA if there isn't)

NA

Additional context (OPTIONAL)

The README.md File Link was Written as Readme.md in lowercase and did not succeed in redirecting to the README.md file in this repository. hence it has been changed to the correct link.

Test plan (OPTIONAL)

NA

Checklist

• My code follows the code style of this project.
• I have performed a self-review of my own code.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generate no new warnings.
• I have added tests that prove my fix is effective or that my feature works.
• The title of my pull request is a short description of the requested changes.