feat(text_to_speech-v1): Support for speaking rate and custom pronunciations (googleapis#29436)

Author: gcf-owl-bot[bot]

google-cloud-text_to_speech-v1/lib/google/cloud/text_to_speech/v1/text_to_speech/client.rb

@@ -357,7 +357,7 @@ def synthesize_speech request, options = nil
             end
 
             ##
-            # Performs bidirectional streaming speech synthesis: receive audio while
+            # Performs bidirectional streaming speech synthesis: receives audio while
             # sending text.
             #
             # @param request [::Gapic::StreamInput, ::Enumerable<::Google::Cloud::TextToSpeech::V1::StreamingSynthesizeRequest, ::Hash>]