Update README.md

Author: hephaex

README.md

@@ -14,7 +14,7 @@ Here we list the latest versions of our supported kernel images.
 |-------------------------|----------------------------|---------|-------|-------|------------|-----|-------------------|
 | TensorFlow              | `lablup/python-tensorflow` | 1.15.4  | O     | O\*   | O          |     | Bundled w/Keras 2 |
 | TensorFlow              | `lablup/python-tensorflow` | 2.4.3   | O     | O\*   | O          |     | Bundled w/Keras 2 |
-| TensorFlow              | `lablup/python-tensorflow` | 2.5.1   | O     | O\*   | O          |     | Bundled w/Keras 2 |
+| TensorFlow              | `lablup/python-tensorflow` | 2.5.2   | O     | O\*   | O          |     | Bundled w/Keras 2 |
 | TensorFlow              | `lablup/python-tensorflow` | 2.6.0   | O     | O\*   | O          |     | Bundled w/Keras 2 |
 | TensorFlow              | `lablup/python-tensorflow` | 2.7.0   | O     | O\*   | O          |     | Bundled w/Keras 2 |
 | PyTorch                 | `lablup/python-torch`      | 1.7     | O     | O\*   | O          |     |                   |
@@ -81,6 +81,10 @@ Here we list the latest versions of our supported kernel images.
 | NGC-TensorFlow          | `lablup/ngc-tensorflow` | 21.08-tf2-py3 | O     | O\*   | O          |     | Bundled w/Keras 2 |
 | NGC-TensorFlow          | `lablup/ngc-tensorflow` | 21.09-tf1-py3 | O     | O\*   | O          |     | Bundled w/Keras 2 |
 | NGC-TensorFlow          | `lablup/ngc-tensorflow` | 21.09-tf2-py3 | O     | O\*   | O          |     | Bundled w/Keras 2 |
+| NGC-TensorFlow          | `lablup/ngc-tensorflow` | 21.10-tf1-py3 | O     | O\*   | O          |     | Bundled w/Keras 2 |
+| NGC-TensorFlow          | `lablup/ngc-tensorflow` | 21.10-tf2-py3 | O     | O\*   | O          |     | Bundled w/Keras 2 |
+| NGC-TensorFlow          | `lablup/ngc-tensorflow` | 21.11-tf1-py3 | O     | O\*   | O          |     | Bundled w/Keras 2 |
+| NGC-TensorFlow          | `lablup/ngc-tensorflow` | 21.11-tf2-py3 | O     | O\*   | O          |     | Bundled w/Keras 2 |
 | NGC-Pytorch             | `lablup/ngc-pytorch`    | 19.07-py3     | O     | O\*   | O          |     |                   |
 | NGC-Pytorch             | `lablup/ngc-pytorch`    | 19.08-py3     | O     | O\*   | O          |     |                   |
 | NGC-Pytorch             | `lablup/ngc-pytorch`    | 19.09-py3     | O     | O\*   | O          |     |                   |