Setting-up-echidna (#906)

* Adding the github workflow for echidna

* Minor addition

* Main branch has been renamed to main... changing the script

Author: iherman

.github/workflows/auto-publish.yml

@@ -0,0 +1,20 @@
+# .github/workflows/pr-push.yml
+name: CI
+on:
+  pull_request: {}
+  push:
+    branches: [main]
+jobs:
+  main:
+    name: Build, Validate and Deploy
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: w3c/spec-prod@v2
+        with:
+          TOOLCHAIN: respec
+          W3C_ECHIDNA_TOKEN: ${{ secrets.W3C_TR_TOKEN }}
+          W3C_WG_DECISION_URL: https://www.w3.org/2017/vc/WG/Meetings/Minutes/2022-08-03-vcwg#resolution1
+          W3C_BUILD_OVERRIDE: |
+             shortName: vc-data-model-2.0
+             specStatus: WD