chore: ci jobs, readme improvements

- chore: ci jobs for build/test
- chore: readme links (top)

Signed-off-by: Sam Gammon <sam@elide.ventures>

.github/workflows/ci.build-test.yml

@@ -20,8 +20,11 @@ jobs:
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
             persist-credentials: false
+            submodules: true
       - name: "Setup: Java 21"
         uses: actions/setup-java@v4
         with:
           java-version: '21'
           distribution: 'zulu'
+      - name: "Build & Test Repository"
+        run: make TESTS=yes SIGNING=no JAVADOC=no SNAPSHOT=yes

README.md

@@ -1,6 +1,9 @@
 
 # JPMS Attic
 
+- [GitHub Repo](https://github.com/javamodules/attic)
+- [Docs](https://jpms.pkg.st)
+
 This repository provides sub-module library overrides for popular Java libraries which don't yet provide JPMS support (at least until some PRs are merged!). There is a Maven repository which contains these artifacts, too, so you can safely use them in your projects.
 
 #### Pending PRs