Update documentation
diff --git a/docs/dyn/vision_v1.images.html b/docs/dyn/vision_v1.images.html
index 6a4fded..7f5d55a 100644
--- a/docs/dyn/vision_v1.images.html
+++ b/docs/dyn/vision_v1.images.html
@@ -178,20 +178,21 @@
             },
           },
           "languageHints": [ # List of languages to use for TEXT_DETECTION. In most cases, an empty value
-              # will yield the best results as it will allow text detection to
-              # automatically detect the text language. For languages based on the latin
-              # alphabet a hint is not needed. In rare cases, when the language of
-              # the text in the image is known in advance, setting this hint will help get
-              # better results (although it will hurt a great deal if the hint is wrong).
-              # Text detection will return an error if one or more of the languages
-              # specified here are not supported. The exact list of supported languages are
-              # specified here:
-              # https://cloud.google.com/translate/v2/using_rest#language-params
+              # yields the best results since it enables automatic language detection. For
+              # languages based on the Latin alphabet, setting `language_hints` is not
+              # needed. In rare cases, when the language of the text in the image is known,
+              # setting a hint will help get better results (although it will be a
+              # significant hindrance if the hint is wrong). Text detection returns an
+              # error if one or more of the specified languages is not one of the
+              # [supported
+              # languages](/translate/v2/translate-reference#supported_languages).
             "A String",
           ],
         },
         "image": { # Client image to perform Google Cloud Vision API tasks over. # The image to be processed.
           "content": "A String", # Image content, represented as a stream of bytes.
+              # Note: as with all `bytes` fields, protobuffers use a pure binary
+              # representation, whereas JSON representations use base64.
           "source": { # External image source (Google Cloud Storage image location). # Google Cloud Storage image location. If both 'content' and 'source'
               # are filled for an image, 'content' takes precedence and it will be
               # used for performing the image annotation request.
@@ -857,7 +858,7 @@
           "details": [ # A list of messages that carry the error details.  There will be a
               # common set of message types for APIs to use.
             {
-              "a_key": "", # Properties of the object. Contains field @ype with type URL.
+              "a_key": "", # Properties of the object. Contains field @type with type URL.
             },
           ],
         },