Add Github Action to create a release (#11)

Author: fmenezes

.github/workflows/tag.yml

@@ -0,0 +1,22 @@
+name: Tag
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+
+  tag:
+    name: Tag
+    runs-on: ubuntu-latest
+    steps:
+    - name: Create Github Release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ github.ref }}
+        release_name: ${{ github.ref }}
+        body_path: docs/releases/${{ env.TAG }}.md
+