Add to README

1 files changed, 23 insertions, 1 deletions

diff --git a/packages/sra-api/README.md b/packages/sra-api/README.md
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--- a/packages/sra-api/README.md
+++ b/packages/sra-api/README.md
@@ -1,9 +1,31 @@
 ## @0xproject/sra-api
 
-Contains the Standard Relayer API swagger spec.
+Contains the Standard Relayer API [OpenAPI Spec](https://github.com/OAI/OpenAPI-Specification).
+
+The package distributes both a javascript object version and a json version.
+
+## Usage
+
+```
+import { api } from '@0xproject/sra-api';
+```
 
 ## Installation
 
+```
+yarn install
+```
+
+## Development
+
+You can start a development server that will serve a [ReDoc](https://github.com/Rebilly/ReDoc) documentation instance. It uses the `api.json` file from `lib/` (you must have built at least once with `yarn build` or `yarn build-json`) that is based on the `api` object exported from `src`.
+
+```
+yarn develop
+```
+
+The process will watch for changes, but will not hot-reload so you must refresh the page to see the changes.
+
 ## Contributing
 
 We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.