message: fix typo in documentation
  GitOrigin-RevId:
diff: @@ -8,7 +8,7 @@ accomplishing some common cryptographic tasks using [Tink](https://github.com/go
  To install Tink locally run
  ```sh
  -go get github.com/google/tink/go
  +go get github.com/google/tink/go/...
  ```
  to run all the tests locally
  