update readme

Author: dwwoelfel

README.md

@@ -11,3 +11,25 @@ Staging triggers a build on [staging cloudbuild](https://console.cloud.google.co
 Production triggers a build on (https://console.cloud.google.com/cloud-build/builds?project=onegraph-dashboard) on pushes to master and deploys to prod firebase hosting/cloud run.
 
 Check the cloudbuild-staging.yaml, cloudbuild.yaml, and Dockerfile for implementation details.
+
+### Developing locally
+
+Install dependencies
+
+```
+yarn install
+yarn dev
+```
+
+If you need to change one of the queries
+
+Go to [the Server-Side auth page for the OneGraph changelog app](https://www.onegraph.com/dashboard/app/570a3d6b-6ff3-4b7a-9b0d-fe4cf6384388/auth/server-side) and get a personal token with access to GitHub.
+
+Go to [the Persisted queries page for the OneGraph changelog app](https://www.onegraph.com/dashboard/app/570a3d6b-6ff3-4b7a-9b0d-fe4cf6384388/persisted-queries) and get a dashboard access token to persist queries.
+
+Create a `.env` file with the following
+
+```
+OG_GITHUB_TOKEN="YOUR_SERVER_SIDE_AUTH_TOKEN"
+OG_DASHBOARD_ACCESS_TOKEN="YOUR_TOKEN_TO_PERSIST_QUERIES"
+```