chore: update docs/dyn , add static discovery files to discovery_cache/documents (#1111)

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Source-Link: https://github.com/googleapis/synthtool/commit/c2de32114ec484aa708d32012d1fa8d75232daf5
diff --git a/docs/dyn/youtube_v3.membershipsLevels.html b/docs/dyn/youtube_v3.membershipsLevels.html
index cbcce6a..e8c7c4f 100644
--- a/docs/dyn/youtube_v3.membershipsLevels.html
+++ b/docs/dyn/youtube_v3.membershipsLevels.html
@@ -101,23 +101,23 @@
   An object of the form:
 
     {
+    "etag": "A String", # Etag of this resource.
     "items": [ # A list of pricing levels offered by a creator to the fans.
       { # A *membershipsLevel* resource represents an offer made by YouTube creators for their fans. Users can become members of the channel by joining one of the available levels. They will provide recurring monetary support and receives special benefits.
-        "id": "A String", # The ID that YouTube assigns to uniquely identify the memberships level.
+        "etag": "A String", # Etag of this resource.
         "snippet": { # The snippet object contains basic details about the level.
           "creatorChannelId": "A String", # The id of the channel that's offering channel memberships.
           "levelDetails": { # Details about the pricing level.
             "displayName": "A String", # The name that should be used when referring to this level.
           },
         },
-        "etag": "A String", # Etag of this resource.
         "kind": "youtube#membershipsLevel", # Identifies what kind of resource this is. Value: the fixed string "youtube#membershipsLevelListResponse".
+        "id": "A String", # The ID that YouTube assigns to uniquely identify the memberships level.
       },
     ],
+    "eventId": "A String", # Serialized EventId of the request which produced this response.
     "visitorId": "A String", # The visitorId identifies the visitor.
     "kind": "youtube#membershipsLevelListResponse", # Identifies what kind of resource this is. Value: the fixed string "youtube#membershipsLevelListResponse".
-    "eventId": "A String", # Serialized EventId of the request which produced this response.
-    "etag": "A String", # Etag of this resource.
   }</pre>
 </div>