demos: initial commit of asciinema demos

Signed-off-by: Ramkumar Chinchani <rchincha@cisco.com>

.github/workflows/golangci-lint.yaml

@@ -16,6 +16,9 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/setup-go@v2
+        with:
+          go-version: '1.17'
       - uses: actions/checkout@v2
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v2
@@ -34,7 +37,7 @@ jobs:
           # only-new-issues: true
 
           # Optional: if set to true then the action will use pre-installed Go.
-          # skip-go-installation: true
+          skip-go-installation: true
 
           # Optional: if set to true then the action don't cache or restore ~/go/pkg.
           # skip-pkg-cache: true