Update product demos

Author: thorstenalpers

README.md

@@ -34,14 +34,14 @@
 
 Here’s a quick look at how CleanMyPosts works:
 
-#### Bulk delete tweets 
-  <img src="./assets/delete-posts.gif" alt="Delete Tweets GIF" width="600" />
+#### Bulk clean tweets 
+  <img src="./assets/clean-posts.gif" alt="Clean Tweets GIF" width="600" />
 
 #### Remove likes 
-  <img src="./assets/delete-likes.gif" alt="Remove Likes GIF" width="600" />
+  <img src="./assets/clean-likes.gif" alt="Clean Likes GIF" width="600" />
 
 #### Unfollow people
-  <img src="./assets/delete-following.gif" alt="Unfollow Accounts GIF" width="600" />
+  <img src="./assets/clean-following.gif" alt="Unfollow Accounts GIF" width="600" />
 
 #### Settings 
   <img src="./assets/settings.png" alt="Settings" width="600" />