Add ManavTheOG signature to signatures directory - #21

Process completed with exit code 1.

Expected your file at 'signatures/ManavTheOG.md' but found 'cp signatures/_template.md signatures/ManavTheOG.md'. The filename must be your GitHub username exactly (case matters).

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/