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README.md

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+# calbuilder
+GitHub action to build PKGFILE, analyze it with namcap and output its .SRCINFO.
+
+## Inputs and outputs
+Inputs:
+* `pkgDir`: PKGBUILD directory relative path.
+
+Outputs:
+* `srcInfo`: Generated `.SRCINFO`.
+* `pkgFile`: Built package file.
+
+## Usage
+```yaml
+name: CI
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - id: makepkg
+      uses: santilococo/calbuilder@master
+    - uses: actions/upload-artifact@v2
+      with:
+        path: ${{ steps.makepkg.outputs.srcInfo }}
+        path: ${{ steps.makepkg.outputs.pkgFile }}
+```