CI: Add weekly build notes.

.github/workflows/sub_weeklyBuild.yml

@@ -46,7 +46,7 @@ jobs:
              rm \$sha1.tar"
           gzip freecad_source_${BUILD_TAG}.tar
           sha256sum freecad_source_${BUILD_TAG}.tar.gz > freecad_source_${BUILD_TAG}.tar.gz-SHA256.txt
-          gh release create ${BUILD_TAG} --title "Development Build ${BUILD_TAG}" --notes "Development Build ${BUILD_TAG}" --prerelease || true
+          gh release create ${BUILD_TAG} --title "Development Build ${BUILD_TAG}" -F .github/workflows/weekly-build-notes.md --prerelease || true
           gh release upload --clobber ${BUILD_TAG} "freecad_source_${BUILD_TAG}.tar.gz" "freecad_source_${BUILD_TAG}.tar.gz-SHA256.txt"
 
   build:

.github/workflows/weekly-build-notes.md

@@ -0,0 +1,21 @@
+# Weekly Development Build
+
+## How-to use
+
+Download the appropriate asset for your OS below
+
+Unpack the bundle to any folder on your system
+
+Launch the application
+
+* **Windows**
+
+    Run `\bin\FreeCAD.exe` in the extracted directory
+
+* **macOS**
+
+    Launch `/FreeCAD.app` in the extracted directory
+
+* **Linux**
+
+    Open the *.AppImage