Update TF image example version in Docker guide

Author: 8bitmp3

site/en/install/docker.md

@@ -37,7 +37,7 @@ using the following format:
 |-------------|----------------------------------------------------------------------------------------------------------------------|
 | `latest`    | The latest release of TensorFlow CPU binary image. Default.                                                          |
 | `nightly`   | Nightly builds of the TensorFlow image. (Unstable.)                                                                  |
-| *`version`* | Specify the *version* of the TensorFlow binary image, for example\: *2.8.0*                                          |
+| *`version`* | Specify the *version* of the TensorFlow binary image, for example\: *2.8.3*                                          |
 | `devel`     | Nightly builds of a TensorFlow `master` development environment. Includes TensorFlow source code.                    |
 | `custom-op` | Special experimental image for developing TF custom ops.  More info [here](https://github.com/tensorflow/custom-op). |