Add stoat demo

.github/workflows/ci.yml

@@ -1,5 +1,9 @@
 name: ci
-on: [push, pull_request]
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
   cancel-in-progress: true
@@ -22,6 +26,11 @@ jobs:
         with:
           name: d2chaos
           path: ./d2chaos/out
+
+      - name: Run Stoat Action
+        uses: stoat-dev/stoat-action@liren/improve-image-diff
+        if: always()
+
   nofixups:
     runs-on: ubuntu-latest
     steps:
@@ -31,3 +40,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets._GITHUB_TOKEN }}
           DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
+
+      - name: Run Stoat Action
+        uses: stoat-dev/stoat-action@liren/improve-image-diff
+        if: always()

.stoat/config.yaml

@@ -0,0 +1,15 @@
+---
+version: 1
+enabled: true
+plugins:
+  job_runtime:
+    enabled: true
+  image_diff:
+    renderers:
+      image: d2renderers/d2sketch/testdata/all_shapes/sketch.exp.svg
+      baseline: d2renderers/d2sketch/testdata/all_shapes/sketch.exp.svg
+#  static_hosting:
+#    your_unique_id:
+#      metadata:
+#        name: "Name of artifact you're hosting, such as Code Coverage Report"
+#      path: path/from/git/root/to/directory/to/host