Use https://grpc.io consistently as the canonical URL
diff --git a/gRPC-RxLibrary.podspec b/gRPC-RxLibrary.podspec
index 34a7a49..4a03c3f 100644
--- a/gRPC-RxLibrary.podspec
+++ b/gRPC-RxLibrary.podspec
@@ -24,7 +24,7 @@
   version = '1.5.0-dev'
   s.version  = version
   s.summary  = 'Reactive Extensions library for iOS/OSX.'
-  s.homepage = 'http://www.grpc.io'
+  s.homepage = 'https://grpc.io'
   s.license  = 'Apache License, Version 2.0'
   s.authors  = { 'The gRPC contributors' => 'grpc-packages@google.com' }