put correct space after comma

[Gaurav6291]

Description

I just removed some irrelevant spaces before the comma in the readme.md file.

Type of change

• [x] This change requires a documentation update

Explain the Testing instructions

Test Configuration:

• Operating system - windows10 pro:
• Version - 20H2:
• Text-editors used - visual studio:

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] My changes generate no new warnings

ATTACH SCREEN-SHOTS

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