Added protobuf ci

Author: silaslenihan

.github/workflows/ci-protobuf.yml

@@ -0,0 +1,24 @@
+name: CI ProtoBuf
+
+on:
+  pull_request:
+
+jobs:
+  buf-breaking:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Setup buf
+        uses: bufbuild/buf-setup-action@35c243d7f2a909b1d4e40399b348a7fdab27d78d # v1.34.0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Run buf breaking
+        uses: bufbuild/buf-breaking-action@c57b3d842a5c3f3b454756ef65305a50a587c5ba # v1.1.4
+        env:
+            REPO_URL: https://github.com/${{ github.repository }}/capabilities
+            BASE_BRANCH: ${{ github.base_ref }}
+        with:
+            against: "${REPO_URL}.git#branch=${BASE_BRANCH}"

capabilities/writetarget/README.md

@@ -0,0 +1,3 @@
+# Generalized Write Target
+
+This framework allows for any chain to implement the write target with minimal friction simply by implementing the interface [target_strategy](https://github.com/smartcontractkit/chainlink-framework/blob/0647c811e8e34635171517e64571650c59402d6a/capabilities/writetarget/write_target.go#L50-L57)