Clarify this example repo is mostly platform-agnostic (#25)

We have a number of users running Dependabot on other platforms. Clarify that this example repo is relevant to them as well.

Author: jeffwidman

README.md

@@ -10,12 +10,14 @@
 
 This repo serves as an example of how to use Dependabot CLI for updates. It is intended as a starting point for advanced users to run a self-hosted version of Dependabot within their own projects.
 
-If you're looking for a hassle-free Dependabot experience, check out the hosted [Dependabot Service](https://docs.github.com/en/github/administering-a-repository/about-dependabot-version-updates).
+For a hassle-free Dependabot experience, check out the hosted [Dependabot Service](https://docs.github.com/en/github/administering-a-repository/about-dependabot-version-updates).
 
 This repo uses an Action which downloads and runs Dependabot CLI. To run the Action you would go to [the Action in the Actions tab](https://github.com/dependabot/example-cli-usage/actions/workflows/example.yml), and run it.
 
 To see what the results look like, go check out the Pull Requests.
 
+While this example repo runs on GitHub Actions, none of the Dependabot bits are specific to GitHub, so it should be straightforward to port it to any other CI system.
+
 ## Implementation details
 
 The Action is defined at [.github/workflows/example.yml](.github/workflows/example.yml).