Automatically update the CLI version in the README (#155)

The configuration for pinning a specific version that readers are likely
to copy-paste should always suggest using the latest version of the CLI.

Closes #138.

Author: pietern

.github/workflows/release-pr.yml

@@ -24,6 +24,7 @@ jobs:
         run: |
           echo "${{ github.event.inputs.version }}" > VERSION
           sed -i -E "s/VERSION=(.*)/VERSION=\"${{ github.event.inputs.version }}\"/" install.sh
+          sed -i -E "s/[0-9]+\.[0-9]+\.[0-9]+/${{ github.event.inputs.version }}/g" README.md
 
       - name: Create a release pull request
         id: cpr