add workflow

.github/workflows/build.yml

@@ -0,0 +1,26 @@
+name: Build
+run-name: Build package
+on:
+  workflow_dispatch:
+  push:
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+
+      - name: install elan
+        run: |
+          set -o pipefail
+          curl -sSfL https://github.com/leanprover/elan/releases/download/v3.0.0/elan-x86_64-unknown-linux-gnu.tar.gz | tar xz
+          ./elan-init -y --default-toolchain none
+          echo "$HOME/.elan/bin" >> $GITHUB_PATH
+
+      - uses: actions/checkout@v4
+
+      - name: print lean and lake versions
+        run: |
+          lean --version
+          lake --version
+
+      - name: build package
+        run: env LEAN_ABORT_ON_PANIC=1 lake build

README.md

@@ -7,7 +7,7 @@ This package provides internationalisation ("i18n") for Lean projects.
 Add the following line to your projects `lakefile.lean`:
 
 ```lean
-require i18n from git "TODO-ADD-CORRECT-URL" @ "main"
+require i18n from git "https://github.com/hhu-adam/lean-i18n" @ "main"
 ```
 
 There are three options to mark strings for translation: