update release version list (#3497)

README.md

 team at ml-agents@unity3d.com.
 
 ## Releases
-The latest release is 0.14.0. Previous releases can be found below:
+The latest release is 0.14.1. Previous releases can be found below:
+| **0.14.0**  | [source](https://github.com/Unity-Technologies/ml-agents/tree/0.14.0) |  [docs](https://github.com/Unity-Technologies/ml-agents/tree/0.14.0/docs) | [download](https://github.com/Unity-Technologies/ml-agents/archive/0.14.0.zip) |
 | **0.13.1**  | [source](https://github.com/Unity-Technologies/ml-agents/tree/0.13.1) |  [docs](https://github.com/Unity-Technologies/ml-agents/tree/0.13.1/docs) | [download](https://github.com/Unity-Technologies/ml-agents/archive/0.13.1.zip) |
 | **0.13.0**  | [source](https://github.com/Unity-Technologies/ml-agents/tree/0.13.0) |  [docs](https://github.com/Unity-Technologies/ml-agents/tree/0.13.0/docs) | [download](https://github.com/Unity-Technologies/ml-agents/archive/0.13.0.zip) |
 | **0.12.1**  | [source](https://github.com/Unity-Technologies/ml-agents/tree/0.12.1) |  [docs](https://github.com/Unity-Technologies/ml-agents/tree/0.12.1/docs) | [download](https://github.com/Unity-Technologies/ml-agents/archive/0.12.1.zip) |

utils/make_readme_table.py

     return f"| **{version}**  | [source](https://github.com/Unity-Technologies/ml-agents/tree/{version}) |  [docs](https://github.com/Unity-Technologies/ml-agents/tree/{version}/docs) | [download](https://github.com/Unity-Technologies/ml-agents/archive/{version}.zip) |"  # noqa
 
 
-versions = ["0.10.0", "0.10.1", "0.11.0", "0.12.0", "0.12.1", "0.13.0", "0.13.1"]
+versions = [
+    "0.10.0",
+    "0.10.1",
+    "0.11.0",
+    "0.12.0",
+    "0.12.1",
+    "0.13.0",
+    "0.13.1",
+    "0.14.0",
+]
 
 sorted_versions = sorted((LooseVersion(v) for v in versions), reverse=True)