refactor: start using module.yml for module metadata (#116)

* feat: add initial module.yml for rpm-ostree

* chore: add shortdesc to module.yml

* feat: add missing module.ymls

* feat: add website rebuild action for module reference updates

* chore: remove old readme in modules dir

* refactor: switch to a hybrid module.yml + README arrangement

* chore: switch docs to use starlight aside syntax

.github/workflows/rebuild-website.yml

@@ -0,0 +1,15 @@
+name: rebuild-website
+on:
+  push:
+    branches:
+      - main
+    paths: # only rebuild when related files change
+      - "**/module.yml"
+      - modules.json
+
+jobs:
+  rebuild-website:
+    name: Trigger build hook for website on Netlify
+    runs-on: ubuntu-22.04
+    steps: 
+      - run: curl -X POST -d {} https://api.netlify.com/build_hooks/65bf6b0dd164b64659beafd5