update drone.yml

drone.yml

     - rm -rf $CONTENT ;
       ls -la release
     - find release -type f -exec md5sum '{}' \;
-    - exit 0 ; ░▒▓█ BUILD FINISHED █▓▒░
+    - exit 0 ; ░░▒▒▓▓██ [ BUILD SUCCESS ] ██▓▓▒▒░░
+
 
 
 - name: sign