docs: fix link to media upload documentation (#1442)

Author: chingor13

google-api-client/src/main/java/com/google/api/client/googleapis/media/MediaHttpUploader.java

@@ -44,7 +44,7 @@
 
 /**
  * Media HTTP Uploader, with support for both direct and resumable media uploads. Documentation is
- * available <a href='/proxy/https/github.com/googleapis/google-api-java-client/commit/%3Cspan%20class=%22x%20x-first%20x-last%22%3Ehttp%3C/span%3E://%3Cspan%20class=%22x%20x-first%20x-last%22%3Ecode.google.com/p/%3C/span%3Egoogle-api-java-client/%3Cspan%20class=%22x%20x-first%20x-last%22%3Ewiki/MediaUpload%3C/span%3E'>here</a>.
+ * available <a href='/proxy/https/github.com/googleapis/google-api-java-client/commit/%3Cspan%20class=%22x%20x-first%20x-last%22%3Ehttps%3C/span%3E://%3Cspan%20class=%22x%20x-first%20x-last%22%3Egoogleapis.github.io/%3C/span%3Egoogle-api-java-client/%3Cspan%20class=%22x%20x-first%20x-last%22%3Emedia-upload.html%3C/span%3E'>here</a>.
  *
  * <p>
  * For resumable uploads, when the media content length is known, if the provided