Added executive summary at top of release-process.md

Since that is what I use most often.

Change-Id: Ica2c8cb3f4e04f9d398ea124fa1cfbb2b2a61428
Reviewed-on: https://gerrit.franz.com:9080/11007
Reviewed-by: Ahmon Dancy <dancy@franz.com>
Tested-by: Ahmon Dancy <dancy@franz.com>

release-process.md

@@ -1,6 +1,17 @@
 AllegroGraph Java client release process
 ========================================
 
+# Executive summary
+To publish a new release:
+  * Ensure that an AG server has been started via `make start-server`.  The server
+    will be used to run tests during the `make deploy` step below.
+  * ```
+make prepare-release
+make deploy
+make publish-dist
+make post-release
+```
+
 # Introduction
 
 Java client releases are deployed to the central Maven repository. This