add = async (entry) => {
    if (started && entry && entry.hash) {
      const bytes = await log.storage.get(entry.hash)
      await pubsub.publish(address, bytes)
    }
  }
Add a log entry to the Sync Protocol to be sent to peers.
@function add
@param {Entry} entry Log entry
@memberof module:Sync~Sync
@instance