Merge pull request #7 from initia-labs/docs/readme

docs: update readme

README.md

@@ -1 +1,5 @@
 # Initia Registry
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+This repo contains a `chain.json` and `assetlist.json` for a number of chains in Initia ecosystem. A `chain.json` contains data that makes it easy to start running or interacting with a node.
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+Schema files containing the recommended metadata structure can be found in the `*.schema.json` files located in the root directory. Schemas are still undergoing revision as user needs are surfaced. Optional fields may be added beyond what is contained in the schema files.