Bubble [main]

Bumped version number to 2.1

756b25b7519c54aa8c9dd1afcd87fa565da1d3ba
diff --git a/50_bubble.py b/50_bubble.py
index 7422be1..2db9955 100644
--- a/50_bubble.py
+++ b/50_bubble.py
@@ -17,7 +17,7 @@ from utils import *
 from worker import *
 
 
-__version__ = '2.0'
+__version__ = '2.1'
 
 
 class Bubble: