Update README.md

Author: duckstroms

README.md

@@ -1,2 +1,11 @@
 # Starbucks-Checker
-Starbucks Account Checker 2021
+![usage](https://i.ibb.co/x10wtGT/image-2021-06-26-214641.png)
+
+Usage for mass account checker:
+* bash sbux.sh 
+* paste your list.txt using format ``email:pass``
+* run
+
+# Authors
+*  Andri Wahyudi (GitHub: ! [duckstroms](https://github.com/duckstroms))
+*  Stregh Streek  (GitHub: ! [streghstreek](https://github.com/streghstreek))