message: Update GOLANG-HOWTO.md
diff: @@ -40,7 +40,7 @@ have multiple implementations, and you choose a desired implementation by
  using a key of corresponding type (see the [this
  section](KEY-MANAGEMENT.md#key-keyset-and-keysethandle) for details).
  -A list of primitives and their implemenations currently supported by Tink in
  +A list of primitives and their implementations currently supported by Tink in
  Golang can be found [here](PRIMITIVES.md#golang).
  ### AEAD
  