README: update badge URLs

- Update documentation badge URL to use pkg.go.dev
- Update GoReportCard to point to the v3 version

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

README.md

@@ -2,9 +2,9 @@
 
 A collection of packages to augment `testing` and support common patterns.
 
-[![GoDoc](https://godoc.org/gotest.tools?status.svg)](https://pkg.go.dev/gotest.tools/v3/?tab=subdirectories)
+[![PkgGoDev](https://pkg.go.dev/badge/gotest.tools/v3?status.svg)](https://pkg.go.dev/gotest.tools/v3)
 [![CircleCI](https://circleci.com/gh/gotestyourself/gotest.tools/tree/main.svg?style=shield)](https://circleci.com/gh/gotestyourself/gotest.tools/tree/main)
-[![Go Reportcard](https://goreportcard.com/badge/gotest.tools)](https://goreportcard.com/report/gotest.tools)
+[![Go Reportcard](https://goreportcard.com/badge/gotest.tools/v3)](https://goreportcard.com/report/gotest.tools/v3)
 
 ## Usage