fix image links in README.md (#442)

Author: fjakobs

.github/workflows/create-build-artifacts.yml

@@ -70,7 +70,9 @@ jobs:
                   yarn ts-node scripts/set_arch_in_package.ts -f package.json -b ${{ matrix.arch.bricks_arch }} -V ${{ matrix.arch.vsix_arch }} -c $(git rev-parse --short HEAD)
                   yarn run fix
 
-            - run: yarn run package -t ${{ matrix.arch.vsix_arch }}
+            - run: |
+                  TAG="release-v$(cat package.json | jq -r .version)"
+                  yarn run package -t ${{ matrix.arch.vsix_arch }}
               working-directory: packages/databricks-vscode
 
             - uses: actions/upload-artifact@v2