Add github action for releasing crates

Signed-off-by: Matthias Wahl <matthiaswahl@m7w3.de>

Author: mfelsche

.github/workflows/publish-crates.yaml

@@ -0,0 +1,37 @@
+name: Publish Crates
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish-simd-json-derive-int:
+    name: Publish simd-json-derive-int
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+      - name: Publish simd-json-derive-int to crates.io
+        uses: katyo/publish-crates@v1
+        with:
+          path: './simd-json-derive-int'
+          registry-token: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+  publish-simd-json-derive:
+    name: Publish simd-json-derive
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+      - name: Publish simd-json-derive to crates.io
+        uses: katyo/publish-crates@v1
+        with:
+          registry-token: ${{ secrets.CARGO_REGISTRY_TOKEN }}