message: Fix typo reported in
  GitOrigin-RevId:
diff: @@ -192,7 +192,7 @@ keysets with master keys stored in a remote [key management
  systems](KEY-MANAGEMENT.md).
  For example, you can encrypt the key material with a Google Cloud KMS key at
  -`gcp-kms:/projects/tink-examples/locations/global/keyRings/foo/cryptoKeys/bar`
  +`gcp-kms://projects/tink-examples/locations/global/keyRings/foo/cryptoKeys/bar`
  as follows:
  ```java
  