fix(docs): Update README.md
-Spinnaker Application & Project Metadata Repository
+Spinnaker Metadata Repository
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-This service fronts a Spinnaker datastore. It's intended that any datastore could work, there are a number of current storage providers. Front50 written using [Spring Boot][0].
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+Front50 is the system of record for all Spinnaker metadata, including: application, pipeline and service account configurations.
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+All metadata is durably stored and served out of an in-memory cache.
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### Debugging
