Merge branch 'issue-1'

docs/guide.md

@@ -701,48 +701,7 @@ variables and, in the case of Windows, parameters to tweak the script behavior.
 
 ### github workflows
 
-On github workflows GHCup itself is pre-installed on all platforms, but may use non-standard install locations.
-Here's an example workflow with a GHC matrix:
-
-```yaml
-jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: true
-      matrix:
-        os: [ubuntu-22.04, macOS-latest]
-        ghc: ['9.6', '9.4', '9.2', '9.0', '8.10', '8.8', '8.6']
-    steps:
-    - uses: actions/checkout@v3
-    - name: Setup toolchain
-      run: |
-        ghcup install cabal --set recommended
-        ghcup install ghc --set ${{ matrix.ghc }}
-    - name: Build
-      run: |
-        cabal update
-        cabal test all --test-show-details=direct
-
-  i386:
-    runs-on: ubuntu-latest
-    container:
-      image: i386/ubuntu:bionic
-    steps:
-    - name: Install GHCup in container
-      run: |
-        apt-get update -y
-        apt-get install -y autoconf build-essential zlib1g-dev libgmp-dev curl
-        # we just go with recommended versions of cabal and GHC
-        curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_INSTALL_NO_STACK=1 sh
-    - uses: actions/checkout@v1
-    - name: Test
-      run: |
-        # in containers we need to fix PATH
-        source ~/.ghcup/env
-        cabal update
-        cabal test all --test-show-details=direct
-```
+We provide a GitHub action [haskell/ghcup-setup](https://github.com/marketplace/actions/ghcup-setup).
 
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