fix(doc):fix README.md alignment

Fixes alignment issue of options. This was due to a missing closing div tag.

This should be a trivial change.

README.md

@@ -10,6 +10,8 @@ For simplicity, only installation method for now is `cargo install`.
 
 **this readme will be extended again, pending some rewrites / updates.** 
 
+</div>
+
 ![Screenshots of zetta](screenshots.png)
 
 ---