Add separator after OSMF section

Author: kzu

readme.md

@@ -18,7 +18,7 @@ To pay the Maintenance Fee, [become a Sponsor](https://github.com/sponsors/devlo
 OSMF tier. A single fee covers all of [Devlooped packages](https://www.nuget.org/profiles/Devlooped).
 
 <!-- https://github.com/devlooped/.github/raw/main/osmf.md -->
-
+---
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 Repository pattern with POCO object support for storing to Azure/CosmosDB Table Storage