Added hashtag requirement to fix replies within replies within replies.

README.md

@@ -1,5 +1,5 @@
 # Is This True Bot
-This is simple bot that responds to Tweets with potential fact checks. A person must reply to a Tweet with a link, tagging [@IsThisTrueBot](www.twitter.com/IsThisTrueBot). Once they do, the bot will reply with a matching fact-check (if one exists) or an error if no link was found.
+This is simple bot that responds to Tweets with potential fact checks. A person must reply to a Tweet with a link, tagging [@IsThisTrueBot](www.twitter.com/IsThisTrueBot) and using the hashtag `#IsThisTrue`. Once they do, the bot will reply with a matching fact-check (if one exists) or an error if no link was found.
 
 This bot is still in the early stages of development. Currently, it only searches PolitiFact for fact-checks. We plan to expand the evaluation to pull in different sources, including Snopes and other sites which support [`ClaimReview`](http://pending.webschemas.org/ClaimReview). The longer-term goal is to use machine learning to enhance our evaluation of sources.
 

isthistruebot/bot.py

@@ -15,7 +15,7 @@ def run(self):
         Create a Custom Tweepy stream listener and start listening for Tweets tagged with @IsThisTrueBot
         """
         stream = tweepy.Stream(auth=twitter.auth, listener=StreamListener())
-        stream.filter(track=['@IsThisTrueBot'], async=True)
+        stream.filter(track=['@IsThisTrueBot #IsThisTrue'], async=True)
 
 
 if __name__ == "__main__":