Added CONTRIBUTING.md to locale

[Lakshay-Pruthi]

Hey I added the contributing.md file to locale repository. This will solve the issue #2111

[lohanidamodar]

Please use the reference contributing guideline provided in the issue description 🙏🏻

[Lakshay-Pruthi]

@lohanidamodar Done.

[lohanidamodar]

THANK YOU! All changes merged 🥳

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