:octocat: Adds an action to fetch, generate and insert Dashy's sponsors into Credits

.github/workflows/insert-sponsors.yml

@@ -0,0 +1,23 @@
+# Generates a list of sponsors, and inserts it into specified files
+# where the `<!-- sponsors --><!-- sponsors -->` tag is
+name: Inserts Current Sponsors in Readme
+on:
+  workflow_dispatch
+  release:
+    types: [published]
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v2
+      - name: Generate Sponsors in Readme 💖
+        uses: JamesIves/github-sponsors-readme-action@1.0.5
+        with:
+          token: ${{ secrets.PAT }}
+          file: 'README.md'
+      - name: Generate Sponsors in Credits 💖
+        uses: JamesIves/github-sponsors-readme-action@1.0.5
+        with:
+          token: ${{ secrets.PAT }}
+          file: 'docs/credits.md'