SLING-7167 Adjust READMEs

add uniform header linking to Sling project

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1810838 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/README.md b/README.md
index b53763d..d2402bb 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,13 @@
-# Sling Event (Jobs) API bundle.
+# Apache Sling Event API
+
+This module is part of the [Apache Sling](https://sling.apache.org) project.
 
 For user documentation see https://sling.apache.org/documentation/bundles/apache-sling-eventing-and-job-handling.html. 
 This README contains information on the API details.
 
 Note that the default implementation has been spun-off into a separate bundle: sling.event.resource
 
-# Bundle
+## Bundle
 
 Sling Event API defines the API for Jobs. It defines Job, JobManager and Queue, as well as consumer Apis for a 
 JobConsumer. There are ancillary APIs to support the work of these core interfaces. The core APIs are exported from