Update README.md (#2934)

* Update README.md dependencies: ImportError: libGL.so.1: cannot open shared object file: No such file or directory ImportError: libgthread-2.0.so.0: cannot open shared object file: No such file or directory ImportError: libSM.so.6: cannot open shared object file: No such file or directory ImportError: libXrender.so.1: cannot open shared object file: No such file or directory * replace older apt-get with apt Code commented for now until a better understanding of the issue, and also code is not cross-platform compatible. Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

Update README.md (#2934)
6c1290fe · BZFYS · GitHub · 18499167 · 6c1290fe
--- a/README.md
+++ b/README.md
@@ -58,6 +58,7 @@ Model |size<br><sup>(pixels) |mAP<sup>val<br>0.5:0.95 |mAP<sup>test<br>0.5:0.95
 ## Requirements
 Python 3.8 or later with all [requirements.txt](https://github.com/ultralytics/yolov5/blob/master/requirements.txt) dependencies installed, including `torch>=1.7`. To install run:
+<!-- $ sudo apt update && apt install -y libgl1-mesa-glx libsm6 libxext6 libxrender-dev -->
 ```bash
 $ pip install -r requirements.txt
 ```