message: Replace reference to file-based key templates in the key rotation section.
  This removes the broken link called out in
diff: @@ -573,10 +573,10 @@ message.
  .getKeysetHandle();
  ```
  -Some common specifications are available as pre-generated templates in
  -[examples/keytemplates](https://github.com/google/tink/tree/master/examples/keytemplates),
  -and can be accessed via the `...KeyTemplates.java` classes of the respective
  -primitives.
  +Factory methods to create key templates can be found in the key manager classes.
  +For example, the method `hmacSha512Template()` in
  +[HmacKeyManager](https://github.com/google/tink/blob/master/java_src/src/main/java/com/google/crypto/tink/mac/HmacKeyManager.java)
  +returns a key template for `HMAC-SHA512`.
  After a successful rotation, the resulting keyset contains a new key generated
  according to the specification in `keyTemplate`, and the new key becomes the
  