Add a README to install-quarto action

Author: cderv

install-quarto/README.md

@@ -0,0 +1,39 @@
+# install-quarto
+
+Install last Quarto release (https://github.com/quarto-dev/quarto-cli/releases) using GitHub Actions. This action can be used to install Quarto on all runner OS and `quarto` will be available from PATH.
+
+## Usage
+
+Example on different OS:
+
+```yaml
+name: quarto-setup
+
+on: 
+  branch: main
+
+jobs:
+  quarto-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: quarto-dev/quarto-actions/install-quarto@v1
+      - run: |
+          quarto --version
+  quarto-windows:
+    runs-on: windows-latest
+    steps:
+      - uses: quarto-dev/quarto-actions/install-quarto@v1
+      - run: |
+          quarto --version
+  quarto-macos:
+    runs-on: macos-latest
+    steps:
+      - uses: quarto-dev/quarto-actions/install-quarto@v1
+      - run: |
+          quarto --version
+```
+
+This action will 
+
+* Download the Github Release of quarto on Mac and Linux and install it
+* On Windows, it will for now use Scoop to install Quarto msi, until I manage to install an MSI file on Github Action.