Match Python Sandbox pattern with other templates

Author: beran-t

docs/template/examples/docker.mdx

@@ -82,7 +82,7 @@ sbx.kill()
 # sandbox.py
 from e2b import Sandbox
 
-sbx = Sandbox.create('docker')
+sbx = Sandbox('docker')
 
 result = sbx.commands.run('sudo docker run --rm alpine echo "Hello from Alpine!"')
 print(result.stdout)