initial commit

.github/workflows/greetings.yml

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+name: Greetings
+
+on: [pull_request, issues]
+
+jobs:
+  greeting:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/first-interaction@v1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        pr-message: 'Hello @${{ github.actor }}, thank you for submitting a PR! We will respond as soon as possible.'
+        issue-message: >
+          Hello @${{ github.actor }}, thank you for your interest in our work! Please visit our [Custom Training Tutorial](https://github.com/ultralytics/yolov5/wiki/Train-Custom-Data) to get started, and see our [Google Colab Notebook](https://github.com/ultralytics/yolov5/blob/master/tutorial.ipynb), [Docker Image](https://hub.docker.com/r/ultralytics/yolov5), and [GCP Quickstart Guide](https://github.com/ultralytics/yolov5/wiki/GCP-Quickstart) for example environments.
+            
+          If this is a bug report, please provide screenshots and **minimum viable code to reproduce your issue**, otherwise we can not help you.
+
+          If this is a custom model or data training question, please note that Ultralytics does **not** provide free personal support. As a leader in vision ML and AI, we do offer professional consulting, from simple expert advice up to delivery of fully customized, end-to-end production solutions for our clients, such as:
+          - **Cloud-based AI** surveillance systems operating on **hundreds of HD video streams in realtime.**
+          - **Edge AI** integrated into custom iOS and Android apps for realtime **30 FPS video inference.**
+          - **Custom data training**, hyperparameter evolution, and model exportation to any destination.
+
+          To discuss your business requirements in greater detail please visit us at https://www.ultralytics.com.

.github/workflows/stale.yml

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+name: Close stale issues
+on:
+  schedule:
+  - cron: "0 0 * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/stale@v1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove Stale label or comment or this will be closed in 5 days.'
+        stale-pr-message: 'This pull request is stale because it has been open 30 days with no activity. Remove Stale label or comment or this will be closed in 5 days.'
+        days-before-stale: 30
+        days-before-close: 5
+        exempt-issue-label: 'tutorial'