[CI] Release bundle tutorials and welcome [1.6.x] (#5301)

.github/workflows/release.yaml

@@ -264,7 +264,10 @@ jobs:
       - uses: actions/checkout@v3
       - name: Create tutorials tar
         run: |
-          tar -cvf mlrun-tutorials.tar docs/tutorials
+          wget -c https://github.com/v3io/tutorials/blob/mlrun-release-stable/welcome.ipynb -P docs
+          wget -c https://github.com/v3io/tutorials/blob/mlrun-release-stable/README.md -P docs
+          tar -cvf mlrun-tutorials.tar docs/tutorials docs/README.md docs/welcome.ipynb
+          rm -rf docs/welcome.ipynb docs/README.md
       - name: Add tutorials tar to release
         uses: ncipollo/release-action@v1
         with: