Tweaks to docs for integrating with cloud.google.com

Change-Id: I8864270e42f8c360a1463fd4961f03ce6da484ba

README.md

@@ -34,9 +34,8 @@ this if you are writing a new application.
 You can learn more about the PKCS #11 library in the
 [user guide](kmsp11/docs/user_guide.md).
 
-Binary distributions of this library are available from the
-[Cloud KMS site](https://cloud.google.com/kms). The binary distributions
-built and distributed by Google are covered by the
+Binary distributions of this library are available as Github releases. These
+binaries built and distributed by Google are covered by the
 [GCP Terms of Service](https://cloud.google.com/terms), and support is available
 from [Google Cloud support](https://cloud.google.com/support-hub).
 

kmsp11/docs/user_guide.md

@@ -38,30 +38,27 @@ Redistributable package, which can be downloaded [here][msvc-redistributable].
 
 ### Downloading and verifying the library
 
-Your account manager can help you enroll for access in the private preview, and
-can provide you with download links. If you're not sure who your account manager
-is, you can email
-[cloudkms-feedback@google.com](mailto:cloudkms-feedback@google.com) for help.
+The library is available for download in [GitHub Releases][releases].
 
 After you've downloaded the library, you can check the downloaded library for
 integrity by verifying the build signature against the preview release public
 signing key.
 
 Save this key on your filesystem, for example, in a file named
-`pkcs11-preview-signing-key.pem`:
+`pkcs11-release-signing-key.pem`:
 
 ```
 -----BEGIN PUBLIC KEY-----
-MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE2TkOo/xW4xUQ3L+F54s0wvL+3++rIHSl
-EKbRKIeNmNMCuZyW6DsVle/xfoWXe86QqAU2K6yKmwntSTaofy4Jw5CLZBRuxIJ8
-YRWxVfaoh8LPwon2v5raynbZnq2hgGUH
+MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEtfLbXkHUVc9oUPTNyaEK3hIwmuGRoTtd
+6zDhwqjJuYaMwNd1aaFQLMawTwZgR0Xn27ymVWtqJHBe0FU9BPIQ+SFmKw+9jSwu
+/FuqbJnLmTnWMJ1jRCtyHNZawvv2wbiB
 -----END PUBLIC KEY-----
 ```
 
 You can then verify the library signature using OpenSSL:
 
 ```sh
-openssl dgst -sha384 -verify pkcs11-preview-signing-key.pem \
+openssl dgst -sha384 -verify pkcs11-release-signing-key.pem \
   -signature libkmsp11.so.sig libkmsp11.so
 ```
 
@@ -343,6 +340,7 @@ This means that:
 [kms-rsa-sign-algorithms]: https://cloud.google.com/kms/docs/algorithms#rsa_signing_algorithms
 [msvc-redistributable]: https://aka.ms/vs/16/release/vc_redist.x64.exe
 [p11-extended-provider-profile]: http://docs.oasis-open.org/pkcs11/pkcs11-profiles/v2.40/os/pkcs11-profiles-v2.40-os.html#_Toc416960554
+[releases]: https://github.com/GoogleCloudPlatform/kms-integrations/releases
 [C_Initialize]: http://docs.oasis-open.org/pkcs11/pkcs11-base/v2.40/errata01/os/pkcs11-base-v2.40-errata01-os-complete.html#_Toc323024102
 [C_Finalize]: http://docs.oasis-open.org/pkcs11/pkcs11-base/v2.40/errata01/os/pkcs11-base-v2.40-errata01-os-complete.html#_Toc383864872
 [C_GetInfo]: http://docs.oasis-open.org/pkcs11/pkcs11-base/v2.40/errata01/os/pkcs11-base-v2.40-errata01-os-complete.html#_Toc385057897