Update conveyor.conf with GH Pages support

And set compatibility level to 10

Author: mikehearn

conveyor.conf

@@ -41,6 +41,9 @@ app {
   // vcs-url = open source = free Conveyor license. Also this will set the update check URL to the latest GitHub Release.
   vcs-url = "https://github.com/hydraulic-software/github-desktop"
 
+  // Publish the generated download page to GitHub Pages.
+  site.github.pages-branch = gh-pages
+
   // This will control what version of Electron is downloaded and bundled.
   electron.version = ${outer-package-json.devDependencies.electron}
 
@@ -117,4 +120,4 @@ app {
   // - There is a CLI tool. It could be exposed by default on Windows.
 }
 
-conveyor.compatibility-level = 6
+conveyor.compatibility-level = 10