Add readme

Author: Joe Stubbs

samples/submit_jobs/README.md

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+## Submit Job Actor Sample ##
+# Image: abacosamples/agave_submit_job
+
+This sample demonstrates how to use the agave client to submit a job on to an execution system. This actor
+expects a JSON message containing a description of the Agave job to submit, as expected by the Jobs service.
+
+# Example Usage #
+
+```bash
+$ curl -H "Content-type: application/json" -H "Authorization: Bearer $tok" -d '{"name": "Abaco-submitted-job", "appId": "wc-0.0.1", "inputs": ["agave://Agave-diagnostics-storage-ds/test.txt"], "archive": false}' $base/actors/v2/$aid/messages
+```
+
+