Covering for a mistake made in the versioning of the previous tag

setup.py

@@ -6,14 +6,14 @@
 setup(
     name             = 'pySerialTransfer',
     packages         = ['pySerialTransfer'],
-    version          = '2.1.8',
+    version          = '2.6.8',
     description      = 'Python package used to transmit and receive low overhead byte packets - especially useful for PC<-->Arduino USB communication (compatible with https://github.com/PowerBroker2/SerialTransfer)',
     long_description = long_description,
     long_description_content_type = "text/markdown",
     author           = 'Power_Broker',
     author_email     = 'gitstuff2@gmail.com',
     url              = 'https://github.com/PowerBroker2/pySerialTransfer',
-    download_url     = 'https://github.com/PowerBroker2/pySerialTransfer/archive/2.1.8.tar.gz',
+    download_url     = 'https://github.com/PowerBroker2/pySerialTransfer/archive/2.6.8.tar.gz',
     keywords         = ['Arduino', 'serial', 'usb', 'protocol', 'communication'],
     classifiers      = [],
     install_requires = ['pyserial']