Add GitHub Actions CI workflow

.Rbuildignore

@@ -2,3 +2,4 @@
 ^\.Rproj\.user$
 ^LICENSE\.md$
 ^README\.Rmd$
+^\.github$

.github/.gitignore

@@ -0,0 +1 @@
+*.html

.github/workflows/R-CMD-check.yaml

@@ -0,0 +1,29 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: R-CMD-check
+
+jobs:
+  R-CMD-check:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2

README.Rmd

@@ -16,6 +16,7 @@ knitr::opts_chunk$set(
 # pyblack
 
 <!-- badges: start -->
+[![R-CMD-check](https://github.com/erictleung/pyblack/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/erictleung/pyblack/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
 Style Python code blocks with [black](https://github.com/psf/black) in RStudio.

README.md

@@ -4,6 +4,8 @@
 # pyblack
 
 <!-- badges: start -->
+
+[![R-CMD-check](https://github.com/erictleung/pyblack/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/erictleung/pyblack/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
 Style Python code blocks with [black](https://github.com/psf/black) in