docs: Add explanation and example to README

Author: Adam Drago

README.md

@@ -1,3 +1,30 @@
 # import-sort-style-atdrago
 
 Adam's personal style for [import-sort](https://github.com/renke/import-sort).
+
+Sorts imports with side effects first, then node modules, installed modules, absolute modules, and finally relative modules. Everything is sorted alphabetically (unicode), and relative modules are sorted from farthest to closest (i.e., number of dots), and then alphabetically.
+
+Example:
+
+```ts
+// Modules with side effects
+import 'some-module-with-side-effects';
+
+// Node modules
+import { Server } from 'http';
+
+// Installed modules
+import { Express } from 'express';
+import winston from 'winston';
+
+// Absolute modules
+import Process from 'lib/Process';
+import { getEnv } from 'utils/getEnv';
+
+// Relative modules
+import configureExpress from './configureExpress';
+import configureKafka from './configureKafka';
+import configureLogging from './configureLogging';
+import configureMetrics from './configureMetrics';
+import configureMongoose from './configureMongoose';
+```