docs: add usage section

coderbyheart · web-flow · commit b13410310916 · 2021-02-06T12:08:55.000+01:00
diff --git a/README.md b/README.md
@@ -20,3 +20,7 @@ for usage.
 ## Installation
 
     npm i --save-dev @nordicsemiconductor/eslint-config-asset-tracker-cloud-typescript
+
+## Usage
+
+    echo '{"extends": "@nordicsemiconductor/eslint-config-asset-tracker-cloud-typescript"}' > .eslintrc
