Fix README badge

Welp, I did not have the correct branch before merging in here
¯\_(ツ)_/¯

Author: cptpiepmatz

README.md

@@ -1,5 +1,5 @@
 # nushell/plugin-examples
-[![Nushell](https://img.shields.io/badge/dynamic/toml?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnushell%2Fplugin-examples%2Frefs%2Fheads%2Fsetup%2FCargo.toml&query=workspace.dependencies.nu-protocol.version&prefix=v&label=nushell&color=%234E9906)](https://github.com/nushell/nushell)
+[![Nushell](https://img.shields.io/badge/dynamic/toml?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnushell%2Fplugin-examples%2Frefs%2Fheads%2Fmain%2FCargo.toml&query=workspace.dependencies.nu-protocol.version&prefix=v&label=nushell&color=%234E9906)](https://github.com/nushell/nushell)
 [![Build Status](https://img.shields.io/github/actions/workflow/status/nushell/plugin-examples/ci.yml)](https://github.com/nushell/plugin-examples/actions)
 
 Plugin examples for Nushell in different languages.
@@ -41,4 +41,4 @@ You might need to update the Nushell dependencies in the plugin template,
 since it can lag behind the latest 
 [nushell](https://github.com/nushell/nushell) version.  
 For more real-world plugins, check out  
-[nushell/awesome-nu](https://github.com/nushell/awesome-nu?tab=readme-ov-file#plugins).
+[nushell/awesome-nu](https://github.com/nushell/awesome-nu?tab=readme-ov-file#plugins).