Fix broken pkg.go.dev links in README

Author: jstemmer

README.md

@@ -10,8 +10,8 @@ packages. This can be helpful if you want to create your own custom JUnit
 reports for example. See the package documentation on pkg.go.dev for more
 information:
 
-- [go-junit-report/v2/pkg/parser/gotest]
-- [go-junit-report/v2/pkg/junit]
+- [github.com/jstemmer/go-junit-report/v2/parser/gotest]
+- [github.com/jstemmer/go-junit-report/v2/junit]
 
 ## Install from package (recommended)
 
@@ -117,8 +117,8 @@ See [CONTRIBUTING.md].
 [Jenkins]: https://www.jenkins.io/
 [github-actions-badge]: https://github.com/jstemmer/go-junit-report/actions/workflows/main.yml/badge.svg
 [github-actions-link]: https://github.com/jstemmer/go-junit-report/actions
-[go-junit-report/v2/pkg/parser/gotest]: https://pkg.go.dev/github.com/jstemmer/go-junit-report/v2/pkg/parser/gotest
-[go-junit-report/v2/pkg/junit]: https://pkg.go.dev/github.com/jstemmer/go-junit-report/v2/pkg/junit
+[github.com/jstemmer/go-junit-report/v2/parser/gotest]: https://pkg.go.dev/github.com/jstemmer/go-junit-report/v2/parser/gotest
+[github.com/jstemmer/go-junit-report/v2/junit]: https://pkg.go.dev/github.com/jstemmer/go-junit-report/v2/junit
 [Releases]: https://github.com/jstemmer/go-junit-report/releases
 [testing]: https://pkg.go.dev/testing
 [CONTRIBUTING.md]: https://github.com/jstemmer/go-junit-report/blob/master/CONTRIBUTING.md