docs: add suppergerrie2 as a contributor for code

[allcontributors]

Adds @suppergerrie2 as a contributor for code.

This was requested by ageddesi in this comment

[skip ci]

[what-the-diff]

PR Summary

• Inclusion of a New Contributor
  The ".all-contributorsrc" file was updated to add a new team member named "Suppergerrie2". This includes their profile and picture from GitHub, and it mentions that they contributed to the project through coding.

• Readme File Update
  The "README.md" file was altered to introduce our new contributor "Suppergerrie2" in the contributors' section. This public-facing information includes their profile, picture, and the area they contributed to on this project.

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