docs: replace absolute paths by relative

This way, Doxygen also works in GitHub actions

.github/workflows/doxygen.yaml

@@ -15,12 +15,14 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Configure pages
         uses: actions/configure-pages@v3
       - name: Install the doxyqml filter
         run: pip install doxyqml
       - name: Doxygen
-        uses: mattnotmitt/doxygen-action@v1.9.5
+        uses: mattnotmitt/doxygen-action@edge
       - name: Upload GitHub pages artifact
         uses: "actions/upload-pages-artifact@v2"
         with:

README.md

@@ -9,8 +9,8 @@ This application can be found on [OpenRepos.net](https://openrepos.net/content/a
 <img alt="Screenshot showing the library root" src="graphics/screenshot-sailfish-1.png" width="33%" /> <img alt="Screenshot showing TV show page" src="graphics/screenshot-sailfish-2.png" width="33%" />
 
 ## Contributing
-Please [see this page for contribution guidelines](https://sailfin.github.io/harbour-sailfin/contributing.html).
-and [this page for how the Jellyfin-Qt library works](https://sailfin.github.io/harbour-sailfin/contributing.html).
+Please [see this page for contribution guidelines](https://heartfin.github.io/harbour-sailfin/contributing.html).
+and [this page for how the Jellyfin-Qt library works](https://heartfin.github.io/harbour-sailfin/contributing.html).
 
 ## Code layout
 ```