Update greetings.yml (#11287)

* Update greeting

* Cleanup README

* Created using Colaboratory

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Created using Colaboratory

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

requirements.txt

@@ -46,5 +46,4 @@ setuptools>=65.5.1 # Snyk vulnerability fix
 # mss  # screenshots
 # albumentations>=1.0.3
 # pycocotools>=2.0.6  # COCO mAP
-# roboflow
 # ultralytics  # HUB https://hub.ultralytics.com