diff --git a/README.md b/README.md
index 6024dfd..efe8483 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,11 @@ 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'  
+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.