add .github folder.

Author: m1k1o

.github/FUNDING.yml

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+github: [ m1k1o ]

.github/workflows/build.yml

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+name: "CI for builds"
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build-amd64:
+    name: amd64-${{ matrix.libc }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        include:
+          - container: golang:1.19-bullseye
+            libc: glibc
+          - container: golang:1.19-alpine
+            libc: musl
+
+    container:
+      image: ${{ matrix.container }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Build
+        run: go build -ldflags="-s -w"
+
+      - name: Upload to releases
+        uses: svenstaro/upload-release-action@v2
+        id: attach_to_release
+        with:
+          file: go-transcode
+          asset_name: go-transcode-amd64-${{ matrix.libc }}
+          tag: ${{ github.ref }}
+          overwrite: true