update documented import path

README.md

@@ -16,7 +16,7 @@ kid, err := keypairs.ThumbprintPublicKey(pub)
 
 # API Documentation
 
-See <https://godoc.org/github.com/big-squid/go-keypairs>
+See <https://pkg.go.dev/git.rootprojects.org/root/keypairs>
 
 # Philosophy
 

examples/go.mod

@@ -0,0 +1,5 @@
+module github.com/example/foobar
+
+go 1.12
+
+replace github.com/big-squid/go-keypairs => git.rootprojects.org/root/keypairs