Update dependabot.yml

Author: jstedfast

.github/dependabot.yml

@@ -1,11 +1,11 @@
-# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
 
 version: 2
 updates:
-  - package-ecosystem: nuget
-    directory: /
+  - package-ecosystem: "nuget"
+    directory: "/"
     schedule:
-      interval: weekly
-      day: monday
+      interval: "weekly"
+      day: "monday"
       time: "08:00"
       timezone: "America/New York"