reademe fix

 <h1>Building a Slackbot</h1><br>
 <h2>A slackbot that reacts to user's chat and sends jokes </h2><br><br>
 
-<h3>Currently operating on aws EC2 / managing it to run on docker container combining mongodb and the code to interact on 'aws docker version' branch
+<h3>Currently operating on aws EC2 / managing it to run on docker container combining mongodb and the code to interact on 'aws docker version' branch</h3>
 
 ![joker_fix](https://user-images.githubusercontent.com/39256000/58455581-0ce84100-815d-11e9-833c-90c7af08f52f.jpg)
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