add ferdinand to the list

README.md

@@ -92,6 +92,7 @@ Cybersecurity|[NetBird](https://netbird.io)|Zero Configuration Mesh VPN for Busi
 Cybersecurity|[Nuclei](https://nuclei.projectdiscovery.io/)|Vulnerability scanner based on simple YAML based DSL|<a href=https://github.com/projectdiscovery/nuclei><img src="https://img.shields.io/github/stars/projectdiscovery/nuclei?style=social" width=150/></a>|[Tenable Nessus](https://www.tenable.com/products/nessus)|
 Design|[Modulz](https://www.modulz.app/)|Code-based tool for designing and prototyping|<a href=https://github.com/radix-ui/primitives><img src="https://img.shields.io/github/stars/radix-ui/primitives?style=social" width=150/></a>|[Figma](https://www.figma.com/)|
 Design|[Penpot](https://penpot.app/)|Design & prototyping platform|<a href=https://github.com/penpot/penpot><img src="https://img.shields.io/github/stars/penpot/penpot?style=social" width=150/></a>|[Figma](https://www.figma.com/)|
+Devtool|[Ferdinand](https://ferdinand.email)|An open-source email delivery service.|<a href=https://github.com/valyentdev/ferdinand.git><img src="https://img.shields.io/github/stars/valyentdev/ferdinand.git?style=social" width=150/></a>|[Resend](https://resend.com), [Sendgrid](https://sendgrid.com), [AWS SES](https://aws.amazon.com/ses)|
 Digital Signature|[DocuSeal](https://docuseal.co)|Digital Signing Infrastructure|<a href=https://github.com/docusealco/docuseal><img src="https://img.shields.io/github/stars/docusealco/docuseal?style=social" width=150/></a>|[DocuSign](https://www.docusign.com/)|
 Digital Signature|[Documenso](https://documenso.com)|Digital Signing Infrastructure|<a href=https://github.com/documenso/documenso><img src="https://img.shields.io/github/stars/documenso/documenso?style=social" width=150/></a>|[DocuSign](https://www.docusign.com/)|
 Digital Signature|[LibreSign](https://libresign.coop/)|Digital document signer|<a href=https://github.com/LibreSign/libresign><img src="https://img.shields.io/github/stars/libresign/libresign?style=social" width=150/></a>|[DocuSign](https://www.docusign.com/)