docs: add mentions to the README

README.md

@@ -98,6 +98,15 @@ const specification = openapi()
 
 We are API nerds. You too? Let’s chat on Discord: <https://discord.gg/8HeZcRGPFS>
 
+## Thank you!
+
+Thanks a ton for all the help and inspiration:
+
+- [@philsturgeon](https://github.com/philsturgeon) to make sure we build something we won’t hate.
+- We took a lot of inspiration from [@seriousme]https://github.com/seriousme and his package [openapi-schema-validator](https://github.com/seriousme/openapi-schema-validator) early-on.
+- You could consider this package the modern successor of [@apidevtools/swagger-parser](https://github.com/APIDevTools/swagger-parser), we even test against it to make sure we’re getting the same results (where intended).
+- We stole a lot of example specification from [@mermade](https://github.com/mermade) to test against.
+
 ## Contributors
 
 <!-- readme: collaborators,contributors -start -->