added better comments to text.proto and reran protoc

channels/text.proto

@@ -10,12 +10,17 @@ syntax = "proto3";
 package parse;
 option go_package = "/channels";
 
+// CMIXChannelText is the payload for sending normal text messages to channels
+// the replyMessageID is nil when it is not a reply
 message CMIXChannelText {
   uint32 version = 1;
   string text = 2;
   bytes replyMessageID = 3;
 }
 
+// CMIXChannelReaction is the payload for reactions. The reaction must be a
+// single emoji and the reactionMessageID must be non nil and a real message
+// in the channel
 message CMIXChannelReaction {
   uint32 version = 1;
   string reaction = 2;