Add TF2.4.1 for Ubuntu 20.04

Author: lakshayg

README.md

@@ -16,6 +16,7 @@ All the binaries were compiled by passing `--config=opt` to bazel and setting
 
 | TF     | HW  | OS             | GCC                | Python   | Supports                        |                                                                                                                                                           |
 |--------|-----|----------------|--------------------|----------|---------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|
+| 2.4.1  | CPU | Ubuntu 20.04   | 9.3.0              | 3.8.5    | FMA, AVX, AVX2, SSE4.1, SSE4.2  | [Download](https://github.com/lakshayg/tensorflow-build/releases/download/tf2.4.0-ubuntu20.04-python3.8.5/tensorflow-2.4.1-cp38-cp38-linux_x86_64.whl)    |
 | 2.2.1  | CPU | macOS Catalina | clang-1200.0.26.2  | 3.8.6    | FMA, AVX, AVX2, SSE4.1, SSE4.2  | [Download](https://github.com/lakshayg/tensorflow-build/releases/download/tf2.2.1-py3.8-macos/tensorflow-2.2.1-cp38-cp38-macosx_10_15_x86_64.whl)         |
 | 2.2.0  | CPU | Ubuntu 18.04   | 7.5.0              | 3.7.7    | FMA, AVX, AVX2, SSE4.1, SSE4.2  | [Download](https://github.com/lakshayg/tensorflow-build/releases/download/tf2.2.0-py3.7-ubuntu18.04/tensorflow-2.2.0-cp37-cp37m-linux_x86_64.whl)         |
 | 2.1.0  | CPU | Ubuntu 16.04   | 5.4.0              | 3.5.2    | FMA, AVX, AVX2, SSE4.1, SSE4.2  | [Download](https://github.com/lakshayg/tensorflow-build-archived/releases/download/tf-2.1.0-py35-ubuntu1604/tensorflow-2.1.0-cp35-cp35m-linux_x86_64.whl) |