diff --git a/README.md b/README.md
index efe8483..dea62ba 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,13 @@ Clean your Twitter timeline
 
 Before run, remember to set those environment variables:
 
-``
+```
 export TWITTER_ACCESS_TOKEN='' 
 export TWITTER_ACCESS_TOKEN_SECRET='' 
 export TWITTER_CONSUMER_KEY='' 
 export TWITTER_CONSUMER_SECRET='' 
 export TWITTER_NAME='@your_twitter_name' 
-``
+```
 
 and follow instructions how to claim a [Twitter developers account](https://developer.twitter.com/en/apply) and [how to create your app](https://developer.twitter.com/en/apps/create), needed to fetch tokens and keys to your Twitter timeline.